First of all thanks to all of you for chiming in. So far I`ve decided to seam weld the areas that I think will be subjected to flexing but also weld reinforcement plates in critical areas. As far as I`ve understood the critical areas are at the bottom of the A pillars, the area between the back panel and the rear fender, the area below the gills and the area suggested by JanDaMan. The chassis cross- brace will remain in place. Any other areas you would suggest? Should any other work carried out while the body is unpainted?
I am planning on moving the seat rails 2 or 3 cm to the right to line up the seat with the steering wheel. Any thoughts on this. ?