Figured I needed to see if anyone still read this NG!
My O/A rig was not getting much use, then my gas supplier changed the lease terms, made it MUCH more expensive per month, I sent the tanks back. But I still have occasional needs for braze repairs and cutting off the stray bolt or two. MY BIL had a long unused O2 and Mapp gas tote setup that he was willing to donate. I checked around this afternoon, The O2 bottle is an 'R' size @ 20 cubic feet, my local supplier will take it with no questions asked for about $20 per fill. Mapp gas is running about $8 per 1 pound cylinder.
Is this thing worth the time and effort to get it running right? I know that the O2 tank won't last at all for any cutting but does it cut at all? Lightweight brazing (mostly small castings and thin sheet metal) should be fine. Welding is pretty iffy from what I've read.