Figuring that you would use aluminum for the construction of the ute body, have you estimated the weight difference? The two passenger doors, cargo door and side glass might save about 250 pounds. The subject roof section is give-or-take comparable to a Gen I 2-door is about 75-100 pounds...I have cut up two Monteros this way. I have not reduced the cab floor for recycling.

One of the Betsy's had the back half removed, and Toasty did the same to a Gen 2. Threads are older but should still have some useful info:

Toasty's Monchopo

Beer and Cutting Tools

1987 Raider - Roxy
1988 Mighty Max 2.6L Turbo - Pearl
1997 Mountaineer V8 - Freddy
2000 Excursion V10 - Freya