what next to consider- sway and wind resistance. yes a flat wall trailer is gonna give you wind resistance while pulling it. a pretty good amt too. you will offset some of this by only towing 80% of your max tow weight. towing one of the smaller teardrop type trailers will help too. you will not have this with a pop up or hi-lo trailer. your vehicle will tow a pop up or hi lo trailer of the same weight much easier. sway? wind will hit the sides of the trailer too. and a big tractor trailer going past you on the freeway will give you sway too. bigger the surface area of the sides the more the sway. longer rv's get it worse. the tow vehicle has to have a long enough wheelbase to counter this effect and keep the trailer towing straight. shorter wheelbases cannot handle this as well resulting in situations where the trailer sways and if it gets bad enough the tow vehicle and rv can both end up on their sides. not common, but has happened. their are equations to figure out the exact length rv you should tow, but i don't know them. you are definitely gonna be coming in under 2o feet. maybe 12-16 is a ballpark. end result. your probably best suited with a pop up, hi-lo trailer, at most a teardrop trailer or really small rv with only one axle if you keep your current tow vehicle. if you want more comfort and amenities in the rv, trade in your tow vehicle for something more capable. pick your rv or type of rv before you would buy another vehicle to ensure that you get one that could tow what you are wanting it to tow. good luck.
