Which truck to get?

I tow a 31' fifthwheel, weight about 9000 lbs with a gas, 2500 Dodge. I have a long bed, but if I could have gotten a short, regular size bed, that would have been better. My opinion, only, for no worry and maybe anot upgrade later, a 250 or 2500 gas, at least an extended cab, short bed with trailer towing package will be more than sufficient. With all the new weight changes a 150 or 1500 might do.
Personally, I like gas for the lighter trailers.

Have fun, good luck and congrats on your retirement. 32 years ofcteaching...you earned it.