Best wishes Intisaar brother for your project.
Reinforce The Structure by introducing some concealed beams or like that . in my opinion the capabilities of the Panel Beater you selected is not upto the mark for this sort of work .
But do not loose heart .
also keep in mind having heavy Diesel motor at front so the chassis should be strong enough .
what about throwing a 3C in her instead of overhauling the 1C .
