But I do work for a welding supply company, albeit in the IT department.

I asked the guys in the repair shop,and the sales counter, if they had any advice on where you could find that model welder. None of them knew where to find that Millermatic, and the repair guys said if you were looking for one to use for welding, and it ever needed repair, you would probably have problems finding parts.

Then again, maybe parts is the reason you're looking for one now.

In any case, they said the current model closest to that would be the Millermatic 141.