HOTD 1 used standard happ 45 type guns. (Or the matching sega variant.)
I'm just throwing that out there is you need a cheaper option. (Or something to get you up and running between now and the time you find the deal that fits your needs.)
Hi! Posting pics cause there seems to be a confusion on the type of gun. Also, does anyone have the hose and harness? You can see it's perfectly useless where the wires are cut.