I have a Hobart Air Force 625 as new condition with hundreds of dollars worth of new consumables. It is rated to cut 7/8 steel, it will blaze through 1/2 inch steel like butter. This cutter only has about 20 minutes of use on it. I paid $1995 plus tax for it, plus another $350 for lot of extra consumables and a roller cutting guide that attaches to the head. Total investment just under $2500, and it is just 20 minutes use from being new, looks new.
I would like to trade for a Hk91 in good condition. MP5 clones considered + cash. Hk91 clones maybe, no overprices ones though. Also consider M1A- M14.