Well,the op has owned a 23 ft Class C in the past for almost a year so he already knows what he should be looking for.He did not mention here that he intended to tow his Mazda car with his $10K choice..My advice on that is..Make sure it has a transmission cooler...
This is part of another post in another section by the op.
1. A 21-23 foot Class C or Class A. No towed vehicle (I think the smaller RVs would be total slugs and get about 0.7 mpg when towing anything heavier than a helium balloon).
2. A larger C or A, possibly with a towed vehicle. Not ridiculous combined length, hopefully.
3. A really small Class C, like a Toyota (cheap), or a Class B (expensive, to me, ridiculously so for what you get)
4. A pickup truck like a Ford Mastodon or a Chevy Manhood, happily towing a fifth wheel until the day when a 60 mph crosswind hits and I die in a tangle of wreckage by the side of the interstate.
5. Smaller towing vehicle, like a RAV4, and a teardrop-style minimalist trailer (not nearly as cheap as I think they ought to be).
My budget is about 30K to spend, and I make about 4K a month. My existence tax (medical and other insurance, baksheesh to the gummint) is about 1K a month, so I could afford some version of all of the above options. I just can't decide on which is best.
The only thing I will say about a small Class C and power to pull is just common sense..A 460/454 will have more power in a 21ft than anything larger and heavier and 9 MPG is 9MPG,not really that bad for towing except for diesels maybe.
I'm done with this one.
