Based on what info you have provided, it's not worth more than $500 which is the "safe" number for me to part out a machine. You need to assume worst case if you're buying sight unseen. Could have a trashed playfield, water damage, destroyed boards...
But on the other hand, it's worth going to look at. You never know when you find a jewel that's a one owner mint huo machine that's been forgotten about for decades....