I just accquired a Tekken 2 that was in a Dragon's Lair II cab pretty similar to this one:

(Not in this good of shape, with all black sides and pretty much no art).
Anyway, I was wondering if anyone knew why that control panel was so large? Especially for this game which only needs a joystick and one button! Currently my cab (which is again, NOT the one pictured) has two joysticks and 4 buttons per player (plus the start buttons). I don't really like how the panel sticks out and I need all the space I can get anyway. I was just wondering if I:
a. either cut the control panel down to match the depth of the cab (or whatever the most common CP size is on most cabs) -OR-
b. order a say SFII control panel from ebay or make one that would fit.
I want 6/7 buttons per player for two players. Would a control panel that size be uncomfortable on this cab? Anyone try anything like this before, or have a cab like this?