I'm just wondering if the burns you received a few years ago, instead of epoxy, were the work of polyester resin, which is a much more odorous and volatile concoction. From Gil Gilpatrick's book on building a strip canoe, regarding polyester, "the hardener [MEK peroxide]is extremely flammable, and can cause eye or skin burns". You may want to refer to the chapters on Safety and on Fiberglassing (pages 41-51)in his book. If that's the case, then you can probably work with epoxy with the normal safety precautions.

Otherwise, I would guess that the only safe way would be avoidance or a completely sealed suit with respirator.