I would skip the epoxy. It would make the fly very heavy, and I doubt that it would fare well against a pike with or with out expoxy. I hope I'm wrong and you post your successful results.
The inventor of the fly (I forget his name Capt.Blados) sells a terrific kit that has a very good transfer foil that I have not been able to find anywhere else.
One cast can change your day...maybe your life.