Jake, when I was designing my project ( that never came to life )
Weld middle doors
Halfway on the middle doors, weld the bed bulkhead of a ranger pickup same height of the window bar.
cut the roof to that line and place a modified top from a rear door weld to the upper quarter panel angle to complete the cab.
Rhinoline the interior of the so call newly created bed.. done
Optional roll cage mounted to front bumper, rock sliders and angled down on the bed to frame
Weld middle doors
Halfway on the middle doors, weld the bed bulkhead of a ranger pickup same height of the window bar.
cut the roof to that line and place a modified top from a rear door weld to the upper quarter panel angle to complete the cab.
Rhinoline the interior of the so call newly created bed.. done
Optional roll cage mounted to front bumper, rock sliders and angled down on the bed to frame