I have a 1 1/4" raised wheel well inside. lol. I'm thinking about modify it flat because with the soa I have the room underneath. I just don't know yet if I need to. I plugged the holes in the floor from the table and used pieces of flooring from under the board on the wheel well for fill. You can still see them but barely.
I towed my trailer home when I bought it with my 2004 F150 and maxed at 55mph and couldn't keep it in od. I am going to be in a lot of mountains. I kind of like having a full floating axle for towing, too.
I read a lot of info on the ford forums and started looking for a 6.8 with 4.10 or 4.30 gears. The F250's around here have been greatly abused. Air bags on all four, beat up rigs from every state in the country. I finally found that combo in an F350 that was a used forest fire truck from mountainair, nm. It was a supervisors vehicle so it's white. I got a great deal on a really nice truck with only 69k on it. I hope to get 10+mpg driving easily in od and 6 in the mtns. Of course I have no idea as of right now.
The battery setup is part of my plan for two 140w solar panels on the roof. I bought a eu2000 honda so I have to wait on cash for the solar plus I'm kind of experimenting right now.
Here's a pic of my trucks. My J20 3/4 ton jeep had a fifth wheel in it new. Just a trail rig now. My F150 has towed my utility trailer full of camping gear for years. I'm upgrading from my tent camp with the travel trailer. I love my F350 ex forest fire truck. The limited slip rear axle and the low gearing works very well in the sandy roads and washes I go hunting on. It has window tint now. I bought a used camper shell.