The flat bed is typically flat, thus no wheelwells, and this causes the flat bed to be higher from the ground than a typical pickup bed. So you would end up with more space between the cab and cabover section, and that will increase the overall height, and wind noise between cab and cabover.
Not to mention more steps to get into the camper.
Yes you might be able to find a flatbed that actually has wheel wells, and thus can keep the same distance from ground to bottom of the camper. Many pick a toolbox body, that is 19" deep, not the normal mid-window height. These can accommodate both dual rear wheels and SRW designs. It will be a little heavier than a typical pickup bed body. But it will have more toolbox storage than a flatbed could have, and much more storage than the typical storage box between the factory bed and camper bottom.
I was reading a story about a couple that had a SRW F-350 and large camper. They wanted to avoid the extra long wheelbase of the crewcab, but wanted more cargo capacity and storage. They ended up buying a extended cab F-450 pickup and having a special toolbox body fabricated for their camper, with the ability to use the camper's inside storage box doors that had been to a space between the camper and pickup box, to access the forward storage box from inside the camper, as well as having a door outside, so they could load supplies that way as well.
They stored their bikes in the supercab section, and with the 14,000 GVWR (of that model year) they had more than enough cargo rating.
Good luck finding the ideal camper system!
Fred.
Money can't buy happiness but somehow it's more comfortable to cry in a
Porsche or Country Coach!
If there's a WILL, I want to be in it!
I havn't been everywhere, but it's on my list.
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