I have to say, if that includes the Hypertherm unit(~$1500 value, plus keeping our $400 torch usable), I think I’d just pony it up. That way we can quit dancing around lack of ownership, and do as we wish. Then, once we’ve decided what else we want, we can sell it off. I don’t think getting $5k for it would be hard, again, especially if we include the Hypertherm in the deal.
One of the things that would free up would be the complete retro-fit of controls, software, etc. if that’s what we decided we want. https://www.candcnc.com/
At the very least, it would make any improvements valuable to us, rather than worrying about “throwing money down a hole” by improving a device owned by someone else…