Ground Designs Black Widow Kit?

I'm looking at buying the Black Widow kit from Ground Designs 2000 for $700 shipped to my door. I've been told to stay away from the fiberglass kits and go with urethane. The kit is for my 93 VTEC, daily driver, should I stay away from fiberglass? If so, does anyone know where to find a decent looking urethane kit?

Thanks for the help.

i dont like fiberglass. bends and breakz too easya nd looks bad if bent at all . also weird reflections even if perfect condtion. dontkno much bout teh urethane ones but has ot be better than fiberglass