Just posting a follow-up here...
2/3rd's of the units had working DBV-30's and/or other validators. So far around 1/2 have working monitors. 5 had either Fruit Bonus '96 or Cherry Bonus '96 boards in them. So far I have 5 working machines in almost perfect condition. I'm considering buying boards for the remaining machines. I should have around 15-20 machines working when all is said and done.

With the remaining machines parted out and cabinets sold sans board.
If anyone's in the Austin area and interested in picking up a fully functioning clean 8-liner, let me know. I'll hook you up.
