Probably not. There are so many places to get the Saleen style front for the fox that you could just get another one for the price/time of fiberglassing it. (Plus, I don't suggest fiberglassing the front. It's prone to cracking again.)
1998 Roush: M112'd Aluminum block 4.6L 2V 6 speed track car
1999 SVT: Mostly stockish
1970 Mach 1: Resto-modded monster
2000 Roush #5004 - World's FIRST M112'd V6 Mustang. Sold, but not forgotten.