Right class c for me?

Thank you for all the replies everyone! You have all made great points and have helped me narrow our decision. I believe the class c is the rig for us. A Sprinter is just a dream at this point and I agree that the fuel savings will take a long time to make up the difference in purchase/maintenance fees. So today we looked at coachmans that were previously rentals but with low miles 40k or less. Very clean but still on the spendy side. CCC is important as we carry a ton of stuff, especially when boondocking. I like that fact that pghbob pointed out the getting around town with somewhat ease. When we travel i always have so much stress hauling our 26 ft fifth wheel through any city. It is nice though that we can dump it at a CC and then drive the truck into the town we are visiting. But towing really stresses me out. It would be nice to take the class c into town and be able to park and maneuver with less stress than with a fiver. Any feedback on the coachman freelanders on ford 350 chassis' ? We are looking at 23 footers. Also will I be happy with a gasser as I live in the mountains? My current setup is towing with a dodge cummins diesel and that thing is amazing towing through the mountains. Last question is 10-11 mpg realistic with these gassers or less?
Thanks everyone!
Jason