I have this board (not for sale) and it is a kickass game.
There is no soundboard, though, it's an all in one game (thank god).
Just a tip, the only difference between Maximum Hangtime and a Hangtime board are some roster changes and the title screen, so if you can find a Hangtime board, go for it. Maximum Hangtime was actually a chip upgrade Midway gave to arcade operators for free back in the day, so if you ever find the upgrade chips, you can pop them on your hangtime board easily.