We need  a measurement scale to quantify the degree of improvement when content is increased. We should call these units "Units of AJ" or simply "AJ's"

http://www.galleria-e.com/cgi-bin/Colemans.storefront/en/product/303001

303001
Pole, 4 ft. Aluminum, Used, 6 poles
   4 ft. Aluminum pole, Used, (4 ft. L x 1½ in. outside dia.) Use as a single pole or slide a few together to create longer lengths. Poles are designed with a male and female end for coupling. U.S. Military Issue. Great for tree stands, tent poles, canopy poles, or many other uses. Made in U.S.A. Price includes 6 4 ft. aluminum poles.

 All of my HF antennas are hooked up with balanced line. The lines run from my tuner, which is on top of my main rig, straight up a cinder block wall to grade and then exit the house going over the water supply lines and through aluminum siding. These lines ( 5 or 6) then depart the house in whatever direction is needed to get to whatever antenna they are hooked to. One goes straight up the siding to my loop, Others head out across the yard running along the ground some more then 100 feet. They run through mud, dirt, snow, grass, leaves, bushes, trees, you name it. My PC sits 3 feet from the tuner, my monitor sits 3 inches from the tuner, I have 2 stereo amplifiers within  18 inches, RF is never a factor, My output however is limited to 100 watts,  Try the simplest set up first it may work for you like it has for me.

 I bought 3 hf rigs via the Internet over a two year period . The first two were bought sight unseen but I asked a lot of questions and checked up on the owners callsigns etc. I consider my self lucky and was very pleased with each transaction. The third involved  more money so I limited my search to only those hams which would be feasible for me to visit. For me I decided a hours drive was the limit. The sellers let me visit and try out the equipment and again I was well satisfied.
    I only looked at "c;classifieds" such as eham, qrz.com and qth.com. For this important of a purchase I choose to ignore ebay, however I have bought many $25.00 or less items  vis ebay without incident.

..." maybe somebody of this group is educated and open minded ".  

    I am merely open minded, but you seem to have excluded me. Superiority is indeed exclusive.

 If its quick experimenting I will often tie the wire together with two bowline knots ( one looped through the other) this is a quick strain relief and then wire nuts to make the connection. This allows for quick connect and disconnect and the joint will never come apart unless the wirebreaks. The wire nuts provide a clean and insulated conection and soldering is not required. The whole hook up takes only seconds to do and undo with no harm to materials.
   If I like the antenna results I will then make a cleaner build.
   

 Tried to "walk up" 3 of these,with no load,  the strain was too much and the center one quickly folded to 90 degree angle. If you are going to do as you say you most likely will need to use a "push up" method and bracket as you said the first 28 feet. The remaining 16 feet most assuredly will need guying particularly if a rotator will be on the top.
    This stuff is definitely inexpensive but is not made for the stresses of a vertical load and I think the risk of failure is very great even if guyed, but it might work for you. Having seen how quickly it gave in to the stresses in my attempt I would not use it and discarded the stuff I had.

 If your ok looking at what you have proposed in the corners of your yard, then you wouldn't mind four utility poles out there. AS touched on before poles would be a much stronger and a crew could drop them in much faster and easier then you could ever hope to build your masts.
     Just add a pulley and lead at the top of each one before they are planted, plus you would be able to climb these with hooks if ever the need arises.

How many sections of what length do you have ?  

..."Why not center-feed it?"


Put up your end fed as you suggested and find its mid point . Cut it in there and feed it  with 450 balanced line. This way you avoid all the problems associated with unbalanced antennas in general, and end feds in particular.

...."remove the stinger from the coil"...


 he means remove the whip part from the coil.

One trick is to use the elements of the v as the mast guys, kill two birds, as it were. Another trick is to run the Dacron to 10 feet or so above grade and splice in a chain or cable the last stretch which would be in reach of vandals.

1.3:1 should be of no concern .

 I put a 5 element 2m Yagi on a 6 foot mast on my vent pipe and while it seemed OK at first I discovered that it caused creaking and vibration in the vent pipe which caused quite a commotion on the interior of the house. By the time I  got back up there ( few days) I found the it had worked all the shingles loose and the hardware that had secured the vent flange to the roof surface. Fortunately I was able to patch things up with a bit of tar and some new nails and no internal damage was noted.