You are not at all. figure it needs $150, PLUS the DMD, you are at $950 minimum IMO without any of the labor etc involved. It's not a terrible first game, but it's not a great and only game either.
Maybe try and get it for $400? The biggest problem with this game, you won't be playing pinball for a while, especially if you are new. This is a much better second game (at $400) than first game IMO.
Quoted from meSz:Am I the only one that thinks $650 might be too high for this game in this condition?