Another option would be to have a full roll cage installed but this would require a lot of welding and pipe bending.
Roof cut off truck.
Find a roof from an old crewcab cut it off at the window and door frames in the front and middle and below the rear window at the back.
This will give you a roof with the bracing ribs stamped in and will be much easier to weld on.
Maybe they could not afford a jeep.
Find the right cutoff with the right ratio rears suspension capacity and more.
If you are dead set on buying this truck then i would go to the junk yard find the same model truck chop off its roof and send the new roof and the truck to a good welding shop.
I would not trust the door latching it was a extended cab.
Truck cutoffs for sale.
Make a filler panel for below the window.
Surrounded by houses and with police on patrol it simply isn t possible to cut the roof off a car and drive it down to the beach without getting yourself in altogether too much trouble.
Once that s done i was thinking you could turn it over and grind off the spot welds and remove the scap sheet metal to make a nice clean seam that ll match up well with the original cab.