Hey Mike,
I would try something like the HL LED flash, yeah I know it may not be what you want either, but I have tried rigging a switched for the Tamiya flash years ago and ended up frying an MF unit in the process, and I'm an electrical engineer! LOL
Well, the strobe probably develops like 400 volts to flash so messing with that with switches and such is just asking for trouble in my opinion. Go the safe way, low voltage LED's...