well what you use for the base material really dosnt matter a whole lot after you get the fiberglass down. Yes, its fine to start back up on laying glass tomorrow, and i would get atleast 5-6 layers down before you continue. After you have let the glass fully cure i take that short strand reinforced filler and lay a nice layer over the entire glass surface. Once that cures grind it down to get close to the final profile. By then you should have a surface that is very close to what you want. Mix up some rage and add enough resin to it to make it like a thick soup. Spread this mixture over the entire thing and then try and sand as much as you can in the green stage. I generally do this one more time then hit it with bondo pinhole filler. From there it is primer, sand primer,sand, primer, sand, as much as it takes. Good luck and lets see some pics.
2000 Ranger XLT 4X4
custom fabbed skid plate
fairly stock, but not for long, looking into:
Flowmaster 40 dual, MT classic 2, 33's and bl, misc. exploder accs., custom box/sub/ amp setup...