The RV lifestyle is most enjoyable if you let the wife pick out the ammenities she wants. Us fellas just like towing the stuff around, hooking up, and having a nice place for her to cook while we watch TV.
I have an +11K#, 27' toy hauler that I've dragged around with my 2WD X for over 100K miles. Keep the dry weight under 9000#, which will leave you with room to add a ton of extra stuff, and you'll do fine. I've pulled coast to coast, and over plenty of passes with 10% grade or more.
My tongue weight is very close to 1500#. I have 1400# spring bars on my WD hitch, and I run my rear air bags at 60psi.
Weigh your truck. GCVWR should be 20K#. Deduct loaded(passengers,gear,fuel) truck weight from that, and you'll have max recommended trailer weight.
We went to a camping show yesterday, my wife likes a heavier more expensive unit and I like a not as expensive lighter unit. The one I like is a GVWR of 9490 with a dry weight of 7155 and a 788 dry tongue weight. The one she likes is a GVWR of 10663 with a dry weight of 8130 and a 1155 dry tongue weight.
I have a 24' car hauler that I rarely use with a Propride hitch I plan on transferring it over to the new coach. I do not have air bags or different springs so I may need to modify. What do you guys think?