I have now laid out 4 sheets of foam with (almost) 7 sections:
7 sections finished and layed out on 4 (2'x8') sheets of foam; and the 8th section is started! Only 77.5 sections to go... :-)
Section F0 is on the right end, and it is at the highest point of the roof. F1 through F7 are each ~2" forward of the previous. You can see the "ball and socket" joints, and the 1/2" diameter alignment holes. The support rollers come on Thursday so I will probably make the first foam cuts next weekend!
The bottom piece of F7 is going onto the next sheet of foam, so these four sheets will build just less than 14" of the length of the CarBEN EV. They cost about $36... Of course the fiberglass will be more.