I also dont think a 9k will suit your needs. I have a 10K RE on my 74 power wagon and I pretty much have to snatch block it every time. I also have a Warn 8274. Its a great winch, fast retrival, but a little small for a fullsize, especially if its a long pull.
If you get a ramsey, stick with the RE line. Much better than the REP. I have 2 warn winches (8274 and ATV-2000), a ramsey (RE-10,000) a milemarker (E-12000) and an old 9K Tulsa-Hickey sidewinder. I have no dislikes of any of them (except I prefer PTO/hydraulic). I personally would stay away from the milemarker if I had to do it again. It works, but im not confident in it. but the price was right!
Oh, about the pulling a motorhome on a trailer: I have a tripple axle gooseneck with a warn 2000 atv winch on it. It will pull most any ROLLING load on the trailer that I want. a rolling load is in no way comparable to something stuck!!
So Joe, what are you gettin my truck for its b-day? :-laf
--Jeff