I offered $75 in an email this morning. No response as of yet.
Not sure what the specifics are, he's been vague only to say it powers on with no video or sound. Probably a red flag there, but for $75 I'm willling to roll the dice on this game.
My real problems will begin if I end up purchasing. I have never worked on a real arcade machine before, my experience is limited to MAME. I'll probably have to hire someone to look at it, which is another reason I dont want to overspend.
Thanks everyone for the input.