Soldering stations - OKi-Metcal, Pace or something else?

thinking avout things like heating elemetns (on their own), pumps (or ven parts for said pumps) for a decoldering or hot-air station, componets for the control system, and so on. -tony The metcal tips are self-contained induction heating elements.? The rest of the unit is, IIRC, an approximately 13.5 MHZ RF generator and a cable.? If you open it up, it's not too fancy inside.? About 8 years ago, I thought I was lucky when I bought a "working" MX500 for about $75 on ebay, and of course was disappointed to receive it DOA, and the seller basically disappeared.? Even without the schematics, it was not to hard to figure out what was wrong when I opened it up.? The hardest part was figuring out how to open it--I'm not a very mechanically inclined individual.? It's been working great ever since.? Nowadays you can get working RF generators, usually the RFG-30 models, but sometimes the MX-500 models, for <$100.