Tricky part is mixing Epoxy with out air bubbles.... Very slow. And filling the holes completely.

Well, I was thinking of using hot glue from a hot glue gun. The one I own has a consistency similar to epoxy when it dries, and it's kind of milky white in color. Might be just right for this sort of thing. Would have to test it a bit though. The thing is that the hot glue has no bubbles.