Easiest and possibly cheapest solution, and one I typically use myself, are the Radio Shack 40' telescoping tubular masts. Quick & easy installation with virtually no environmental impact is to sink a five foot long, 2" diameter pipe, into the ground so about 18" extends above earth, and plop the R/S slip-up mast over that pipe to hold it in place while you attach some lightweight guy ropes to the floating guy rings provided on the mast itself.
To support only a wire dipole and nothing else, the mast does not have to be guyed well at all. A single set of lightweight rope guys installed at the 20' level (halfway up the pole), which is easy to do before the pole is telescoped, is all that's required.
I generally anchor the 5' long 2" diameter support pipe, which has no actual connection to the slip-up mast, in some redi-mix concrete which I give about one day to cure before the installation. A 50 lb bag of redi-mix + water is all that's required to fill a hole about 8" in diamter and 3-1/2 feet deep, quickly dug with a post hole digger.
I put these up all over my yard, then rearrange and take them down as needed, and they make virtually no impact on the yard or the environment. When I go to "move" to a new home, I just pull down the masts, use a tubing cutter to cut the 2" pipes left in the ground (stuck in cement!), and cover the little bit of cement that might show with some loose soil and grass. Nobody ever notices, or cares.
The masts can be painted in camouflage colors matching the background or surroundings, prior to erection. I've done that many times, too! Using varying shades of green and brown, a slip-up mast painted in camouflage colors blends into the background so well, that sometimes even I can't find the darned masts when I need to. And that's no joke!
Alternatively, sections of 2x4 studs bolted together in such a way as to create a 40' tall structure, also works well. Unfortunately, this is not any lighter, and is indeed heavier, than the tubular steel sections of tubing used in the Radio Shack slip-up masts -- and the wood will eventually deteriorate, possibly attract termites, etc. I'd use wood in a pinch, but prefer steel over wood.
There are also telescoping fibreglas masts available which are quite sturdy and not unattractive, commercially available from AES (Amateur Electronic Supply) and elsewhere; and I see quite a number of ads for sectional, extendable aluminum antenna masts which are U.S. Army surplus and commonly sell as a 40 foot "kit," which includes eight 5' masts, guy ropes, guy stakes, and a canvas bag that it all comes in, for about $100 or so. I've purchased those Army kits in the past from Fair Radio Sales (http://www.fairradio.com
) and similar surplus houses.
73 de Steve WB2WIK/6