Small Class C

[Sailscalls]

I've wanted a truck camper for sometime to be able to get to remote fishing areas. Lately I've thinking a small class C towing a Jeep Wrangler might be a better setup for me. I can find a spot to camp then explorer fishing spots with the jeep. So I have a few questions I'd like input on.
1) Is there much difference in driving a 22' through 28' and is the mpg about the same?
2) Is mpg on a B+ any better than a Class C?
3) Can you get locking differential on a E-350 or E-450 or does Chevrolet van chassis have it available.
4) I've seen a lot of 22-25' on E-450 is a E-350 sufficient or is the 450 much better?
5) I googled Ford E van chassis but didn't find much information. Can someone recommend a website for Ford and Chevrolet van cut away chassisc.
6) Do you need power leveling system on a "C". I had a class A years ago that had them and they were great.
7) I've read on here that some "C" drives well and some terrible? Do certain camper manufactures like Holiday Rambler, Winnebago handle better than some lower price models? I assumed manufactures wouldn't do anything to the chassis just build the camper. If so, why do some drive well and others not so good?
😎 I'm considering Holiday Rambler, Winnebago, Coachmen, Four Winds are there other brands I need to consider ? Are there much difference in the build and quality of the mention brands?

Thanks for your help

[Tiger4x4RV]

Tiger is built on a pickup chassis and is capable of towing. http://www.tigervehicles.com/

My Tiger is a 2006 CX 4x4. New models comparable to this are built on a 3500 HD (or Ford or Dodge). Now called Bengal, which comes in two versions. Details on website. Used Tigers are very very scarce animals.

I don't think you should buy an RV just for its mpg. Buy one you want to be in, one that feels good to drive.