You just have to look harder. Here's a link to the service manual. Just searched for it on Google.

http://wouxun.su/UserFiles/File/service_manual_wouxun_kg_uv6d.pdf

And now three times. There's a reason you can't just stick a repeater on the air for a hundred dollars. You need ridiculous amounts of ridiculously expensive separation between input and output, and you would need that kind of separation between the CB and the 2 meter radios. With the kind of range you would get operating CB with the 2M antenna, you'd probably be better off just standing outside and yelling at who you are trying to communicate with.

Use the 2M antenna you're looking at, and get a magmount 11M antenna. It would cost almost nothing, it would be a temporary installation, and you could mount it on ANYTHING metal that is nearby if putting it on the trailer is a problem. But considering how small a magnet it would take, the extra space would be negligible. Plus everything would be tuned up and efficient. Remember, that CB is only a few watts to begin with.

I used to use an Outbacker Perth Plus vertical mounted on the tripod they sell. The tripod sits on the ground and is coupled to it. The antenna is good from 80M up through at least 2 meters, maybe even 440 (I don't remember). You do have to go out and move the jumper wire to switch between bands, but I found that just slightly inconvenient - definitely worth it if that's your best option. Some people like them, some don't, but personally I had really good luck with it. I worked most of Europe, Alaska, Hawaii, Japan, and many states with it from Ohio just running 100W. I paid probably around $300 for all of it, but I didn't have anywhere to hang wires or put anything "proper" up. Just food for thought.

Dave
KX8N

The only problem with online directories is that some people don't always have internet access while operating. Field Day would be a good example of this.

I can see this movie getting low ratings simply due to most people never having heard of a numbers station. As both a ham and a longtime SWL, I think the plot at least seems interesting. It may not be the best movie I've ever seen, but it might be worth watching.

Dave,
KX8N

Unfortunately, people act like amateur radio IS some kind of surgery, or some job working with nuclear materials. It's not, it's only about talking, and having a proper station. That's all. Unfortunately no kind of testing is a filter for keeping riff raff out. Technical ability and personality traits are two different things. Speaking of surgeons, think of how many you have heard of who have butchered people up, or are known to be drug addicts since they have access to medicine - look at how much testing and training THEY went through.

I've heard them at the bottom of 10M back to at least 10 years ago, on and off. I just figured they were Mexicans who were using 10M as CB.

By now you've probably already bought something, but I was going to suggest looking around yard sales. I'm sure you could find something REALLY cheap there. Like everyone said, though, just about anything will do. I'd get something from an old stereo if I had a choice.

You've already got tons of good advice. I just wanted to add that you are always going to end up offending SOMEBODY, so try not to worry about it. Have fun! 

Dave
KX8N

Whoever is charging you each year for renewal, it is NOT the FCC. I have a vanity call. It's good for 10 years, and I just recently renewed it for $15. It expires in 2022.

Judging from a Google search of the call, someone is DEFINITELY actively using KC4TBZ, as recently as this year. But it hasn't been a valid call since 1993 when the original holder changed his call.

Editing to add this link: http://dxfor.me/?_s=KC4TBZ. It suggests someone is using it from Kentucky, 10 meters only, and DX only (or mainly). It would be interesting if someone could track them down, because this person is definitely bootlegging the call.

I'm a VE, and I remember a young girl around 9'ish or so who came to a test session at our hamfest. What was curious was that she had passed the code element, but was having trouble with the written (element 2). I would have personally thought it would be the other way 'round.

Dave
KX8N

Definitely read that page. What you are planning to do is simply a fire waiting to happen. It's a bad idea to even run a rig barefoot through the cigarette lighter plug, let alone an amp.

The site was Duathlon this morning when I checked it just now (7am eastern). I'm using Windows 7 with Chrome browser, Time Warner cable internet. I was already logged in, just went to the site for the first time this morning using my normal bookmark, and it looked just like it did yesterday - which was all messed up. I refreshed and it was normal eHam without any pictures at all loading, and then I refreshed a second time and everything was normal.

7:02 PM eastern time here, just got the snake site, then the other one. On the third load I got eHam back, so the problem is still there as of right now.
KX8N