Gointhisaway has a 10.4 on a 2008 Ram and had the issue. Torkllift sends an angle bracket (3 pieces each side) that bolts in the existing tie down bolts and moves the connection point rearward so the torklift clears the rear fender. Very easy install except for the drilling the bracket to match the existing pattern since the material is hardened. Just so happens I will see her within 24hrs and should be able to snap a picture if you would like.
You could also make your own with a piece of 1/4" angle 8' long.
Since your Bigfoot is new, you should check with them as some manufacturers were adjusting for the new fender design and moving the rear point rearward. So the new design may save you some headache.
You can consider yourself lucky. My sister didn't find out about the problem until she had driven 2000 miles to pick up her camper from a dealership. She had to wait around a couple of days for it to get shipped and then another couple days for them to get it drilled and installed.
Edit: Forgot to tell you the 10.4 is a very nice rig with a great layout for two. Only big issue my sister has had was they ran a water line against the outside skin which caused it to freeze on a winter outing. Once she moved it and put a little insulation between it and the wall, shes has been well pleased.
