Ron doesn't make the slappers any more, you'll have to make your own. They don't have to be made the way Ron's was designed, you can use an old file with the teeth ground off and an offset bent in the handle.
You don't need a dillon torch. I had one and wasn't particularly impressed by it, it was heavy and awkward to hold, and fussy to set the pressure correctly. Some folks swear by them of course. If you're stuck on gas welding get a small, lightweight torch (kent white sells the meco midget at tinmantech.com) Personally I'd recommend getting a TIG, it is just about the ideal welding tool for sheetmetal and custom fab work.