Back in the days when I was doing test/evaluation at my job, we had a pile of HP test gear all connected to our 9825A controller. The centerpiece was a big new 3455A which was a pleasure to use. Given that they seem to be relatively available, I'm thinking about buying one for my lab. Partly sentimental reasons, sure - but it was such a nice meter and I really would like to add one as the centerpiece to the bench. Literally - I know how big they are.
I've read all the repair threads here, and it looks like most of the issues are relatively straightforward to repair. The manual only shows a couple of possibly unobtainium parts - the processors and transformer(s). But it doesn't seem as though those are items which fail on your average 3455A. Yes, maybe it will take a while to go through all the troubleshooting steps, but it is mostly op amps, 7400 and CMOS, which are available. Plenty of them, though, for sure.
I'll pop for a working unit if possible, but it doesn't seem that even a typical repair is that bad. Are these units likely to be sold with missing boards? What else do I need to be aware of before buying one?
Thanks for any suggestions.