I'd check the trigger voltages first - you may need optotriacs (MOC3020?).
EDIT - I just looked at the eBay page - it says "High pressure trigger". I'm assuming this means "high tension" or "high voltage", so proper isolation is essential - it could be over 100V. Don't even think about putting one of these guns on a modern camera!
I like the translation "hot-shoe" == "thermal shoe" ;D
Also, before deployment, check any local regulations about photo-sensitive epilepsy.