Great looking truck and camper! You’re going to love them!
I had to add some extenders to my swing out brackets when I got an F450. The rear fenders absolutely wouldn’t fit between the jacks. I used 3” wide flat stock, 3/16” thick, and sandwiched the jack and. bracket between two layers. This gives me about 1.5” clearance on each side.

If your jacks swing in as far as mine do, don’t extend them too much, or you could hit the cab with the jack when you swing them in.

Mine end up pretty close to the front tiedowns, so I have to center the camper in the bed carefully.

:):)