I don't know, depends on how much of a project it is. If the game is complete and not far from working and a decent playfield I don't see why as much as $1500 isn't out of the equation. Working players condition T2s are going for $2500+ these days.
For a deal, and to make up for your effort, maybe $1250 max if you're looking for a deal Id guess.
Just my opinion!