Folks, I'm new to this so please be patient. Just got a 1978 Playboy Bally's Pinball and prior owner thinks the MPU is bad. Alkaline spill out of battery. The existing MPU board is labeled as AS-2962-3. If I need to purchase a replacement MPU, would the following be the right board? [ ULTIMATE Bally & Stern MPU board which replaces AS-2518-35 or AS-2518-17, AS-2518-133, AS-2962-7, A084-91603-AA44, MPU100 or MPU200 MPU board] ?

I'm not sure if the AS-2962-3 is the original board, but the manual says it should have been an AS-2518-17 or AS-2518-35. I also would like to know if its a straight swap of boards or if there is some other modifications that would be necessary. My brother (great with circuit boards) and I are going to trouble shoot per the manual this weekend (5V, 11.9V) but the guy I got it from was pretty darn sure the MPU is bad. So I wanted to get a head start on the right part. Any replies would be greatly appreciated.

actually there's a sticker that says AS-2962-3 but maybe the -35 is under the sticker. Pictures attached

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when you say worth fixing I'm assuming you mean replacing battery and any nearby damaged components (if any)?