Yes was considering getting a complete composit panal for a new roof about 2k all in but have a better solutionFrom experience of those roofs, look at getting another layer of glass fibre over it using woven matting and use a flexible additive. Best of luck.
Yes new roof will be the first thing to fix, rear door is a fold out ramp so it will be removed and the gap filled in to carry a bicycle rack, it's 24 ft 8 inches long so plenty of space I hopeLooks like a good base for a conversion.
The roof looks very thin, so SQs suggestion makes good sense for a number of reasons.
What kind of rear door have you got - and what plans there? Most seem to be partial roller-shutters, so very rattly and not very wind-proof. Solid back to be fitted?
Looking forward to seeing your progress as is the kind of base I would go for if I were doing another conversion
All the work is already done with a removable bullk head with all the structural work done !How are you going to get from the cab to the living qtrs or viceversa.
Ya the roof is the biggest challenge , by far not sure yet one complete composite panel would be the proper way in order to support roof lightsLooks a good base vehicle, as others have said the roof should be your starting point. Having a similar roof albeit with much stronger framing I did use 25 mm celotex adhered to the underside then added battens for fixing ceiling cladding to. Used existing framing to support solar rooflights etc but really wish I had added another skin to the fiberglass outside. I may still do this in the future. Good luck and have fun while watching the money run