I just purchased a tig welder/ plasma cutter and I didn't know until now that my tig function does not work for aluminum. Dc only.I have a Hobart Handler 210 welder 220 volt only. I don't want to spend another $300 plus for a spool gun. I would like to purchase a new stinger with a Teflon liner and use a regular 10lb spool instead. I little direction here?