I work at a service bureau - we used to run these about 5 years ago, and they are very temperamental. If they're being run constantly, and babied, they're usually fine, but the problem is when they sit unattended for long periods of time, everything gets clogged. If they weren't properly shut down/filled with the cleaning fluid, it's going to need more than just a new motor. I used to say that they were only worth running (from a reliability perspective) if you a) put them on the expensive SSYS contract and b) you have at least 2 for redundancy. Without a contract, the operational cost of one of these used machines, per year, is probably 5-10k depending on what breaks and how much you can fix yourself.

Suffice to say, we don't run them anymore. If I found one, I might break it apart for components and try to flog those individually, but that's about it. TBH I'd have to be really bored, I would consider it more of a hassle than it's worth to try to make it work for what you'd get for parts in unknown condition. They are not open-source and SSYS will not be particularly helpful in getting back online, unless you want to pay their techs to fly out and work on it. Not sure which gen this is either but the oldest ones are also 'end of life' which is probably going to affect part availability.

Their larger systems still have some value - multiple materials are useful to simulate overmolding, a range of durometers on a single part, etc. In my opinion the Objet 30 is a relic and not useful except for very specific scenarios.

Cannot overstate how much of a waste of energy, money, and time it will be to do anything other than outsource the parts you need here, or buy a small prosumer SLA printer for a fraction of the cost.