Looking to bond and mold some semi widebody fender flares to my front end. I'm currently making fiberglass mold (clay method )and need some ideas how to attach and make it flush after I bolt them on. I'm novice and not aware of products that can help.
On my rear ( metal fenders) I'll be bolting the peice on, fiberglassing onto the metal, bondo-glass and bondo.

Thanks in advance and any feedback appreciated