Trailers... help a newbie out? (:?

[demactima]

I have one horse. 15.1-ish hh, TWH, chubby. Maybe around 1200 lbs? I really don't know. Anyway, I'm hoping to buy a trailer pretty soon, and my price limit is around $2,000 give or take (my mom's number, not mine). I'm paying for part of it though, so I'd really rather it be cheaper (; (Before I get any lectures, I know - I'd rather pay more for a good trailer than have my horse fall through the floor of a moving trailer. He's my baby, I couldn't even imagine that.)
My mom did some searching on Craigslist and we found some, but I don't really know what EXACTLY you're supposed to be looking for in a trailer. What are the pros/cons of these? Which would you say looks the best?

http://desmoines.craigslist.org/grd/1655260155.html
http://desmoines.craigslist.org/grd/1662191504.html (Cheap and not exactly in-depth about the quality. Trying to hide bad characteristics or just trying to sell quickly? :| )
http://desmoines.craigslist.org/grd/1647247468.html
http://desmoines.craigslist.org/grd/1655210629.html

Also: When you trailer 1 horse in a 2 horse trailer, you put him on the side with the car's steering wheel on, yes? And I've heard varying things... What's the average amount of lead rope slack you should give a horse when he's tied when you're trailering?

 

[**kennalicious**]

i wouldnt recomend any of these a goose neck is deff. safer maybe more expensive but it is worth it it also depends on the truck you plan on pulling it with
small amount of lead rope and it doesnt matter what side

email me of you need more [email protected]

 

[Beautifiedmami]

http://desmoines.craigslist.org/grd/1655…it's padded , no rust, floors are good, and its a two horse trailer for 2500 and it has great tires! you want to give him at least a foot of rope if even that.. it gives him enough to move his head.

 

[ladystang]

would check for rust and rotten floor.
tie enough to let him move head about 3 inches.