I had a close-up look at that machine about a year ago. I can't remember if it wouldn't power up or just wouldn't boot.
She was wanting $300-$400 for it at the time and I don't think it's worth nearly that much.
I can remember thinking that the cab was a cheapie and that you'd have a hard time getting the board repaired if it were bad.
She did have a nifty, low S/N Tempest and Centipede. I picked up the Tempest.
- JM