RV/Commercial is such a grey area, though in my case I think safely RV. And I shouldn't have any problem staying in 65' but I think doubles are legal in Washington, gunna have to double check, though I've never seen it done by anything but a semi.

However doesn't Oregon require a CDL even for RV over a certain weight? Or by RV do you mean camper only? I'll be more along the lines of toy hauler and certainly over 7000lbs.