Have a look here:
4.5 Door Custom Ford F-250 Lowrider

This company does several neat conversions.

 

Nice. I think if I was to go this route it would need to be a full 6 door with the extra cab extention:

Alton Truck Manufacturing Listings

Kind of a cross between a truck, limo and passenger van in one.

 

Cool!!!!!!!

 

I've seen some of those pictures before, those folks do FANTASTIC work!! I'll bet when someone has them build a BRAND NEW Excursion from an F250 that IT turns heads if they were to take it to a Ford dealer for service and tell them its a 2011 Excursion!!

 

All of that cab needs a longer bed in my opinion. Maybe a 10 footer....
You cant find a parking spot as it is, so why not

 

At least it is a coil spring truck. It probably has the same turning radius as mine