I think one of these chinese torches would work in conjunction with the adaptor linked to above.
http://www.ebay.com/itm/P-80-pilot-...639?pt=LH_DefaultDomain_0&hash=item2335c6125f A little further research on your part should get you up n running fairly cheaply.
I'm a little perplexed as to why the end of your whip has 4 connections plus the high amperage while most others only have 2 connections plus the high amperage. Generally speaking, the two wires are just a switch loop. Is there an electrical schematic inside your machine?
Edit: I think I just figured out what the other wires are for. They're for the pilot arc!