[TAC]

Just scanned through your build thread... looks awesome.
Nice work on the fiberglass parts. I cheat the mold process like you do, sometimes using the thin aluminum house flashing material or tin foil to do lay ups on.
On your inner front fiberglass liners there is a thin liner material similar to the foam board that will prevent the rocks coming off the tires from star cracking your gelcoat on the good side. It gets put under the last layer of glass.