Lethal Enforcers conversion
If you are buying the game, make sure guns are working well, game board has no sound issues, and you already mention monitor has been recapped which is nice. I have noticed if the power supply is a little off it can affect the guns accuracy a lot.
It is a conversion, hard to say what the game originally was. It is a no-brainer to buy it for around $100 because of the working parts alone.
If you are selling it, because it is tax return season you could probably get around $300 I would change the T-Molding to a nicer bright blue.
Its actually a fun game and on the + side the original cabinet was a beast with the mirror and everything