Lance 830 on a flatbed??

Terrific information.

I thank you both!

The 830 floor is flat to the back diamond plate which is just a beauty cover for the rear lights, side entry steps, and the sewer connection. It is also a 9' floor length camper, but a tape measure will confirm that.

The sewer drops down in the middle of that rectangular hatch by the ladder, so you could slide the camper that far forward. You could cut a hole or slot the flat bed too for the sewer pipe as it points straight down, or possibly cut the pipe shorter & reroute the system to go out the door instead on down.

New step system will be needed anyway since you will be up pretty high and that camper has a 2 step foldout set.

Sounds like a cool idea that would work with a little bit of mods...

You need to take tape measure and check it yourself, but those campers have holding tank dropping down in the rear overhang.
So depends how the particular camper is build, you might or might not to be able to slide it 8-6 on the bed.
Even with standard Ford bed I had rear tank, or rather it cover hitting my rear bumper.