This extended J-20 truck would probably be pretty practical.

View all the information on ebay

I know for sure it is rare, it is the only 1 I made.
There were some Extended cab Jeep pickups made/sold in Australia, and I have seen pics of 1 prototype in the state, but this is a 1 of a kind.

Custom Built truck – Extended Cab Short Box Sport side
Features:
XRC 8000lb winch
audivox aftermarket cruise control (vacuum)
intermittent wipers
remote start – with “hijacked” fob functions for remote power locks
rebuilt 401
3″ Exhaust
4L80E transmission
TBI, Spark, Tranny, EGR, Charcoal canister all controlled by 16197427 PCM and fully programable/tunable
NP242 t-case (2wd, FTWD, 4wd, low)
Traclock rear diff.
sunroof (no leaks yet!)
dual power seats (04 Traverse) {heated if you can figure out the wiring}
Under rear seat storage
Hydroboost Brakes
Class IV reciever hitch with brake controller
4″ LCD screen radio with input for video – remote backup camera
radio has built in GPS – non updatable maps
Dual tanks with internal fuel pumps
I have an AC set, not installed – pump is on the engine, and condensor in cowl, underdash unit and hoses are in the garage, have new o-rings, oil, fitting adapters to convert to R134A

Extended cab build
http://www.ifsja.org/forums/vb/showthread.php?t=106830
401/4L80 conversion
http://www.ifsja.org/forums/vb/showthread.php?t=152440

Lots of in progress pics
http://s260.photobucket.com/user/ll_billygoat/library/Thumper?sort=3&page=1

Truck really needs a body man to take it over clean up some body lines and rust (front fenders)
Bed is fiberglass, and has some cracks and the flares have issues from loosing an argument with the garage