So I acquired a ms. pacman cab a couple of days ago.  It's pretty beat-up, and the monitor has moderate to severe burn -- so much so that it is noticeable on the blue maze level.
I bought this thinking that I would gut it and convert to a mame machine, but...
- Everything seems to work well (with the exception of the right hand coin mech)
- The joystick is pretty good.  Has a little play at center, but, other than that, functions well.  Guessing the grommet could use replacing, but thats a pretty inexpensive part, right?
- The innards were a lot cleaner than expected
- I had forgotten how nice it is to play a ms pacman cabinet with original hardware...
So now I am thinking about keeping the original board in some fashion.  Some things that have been crossing my mind:  
-rip out the original wiring, re-wire the cab to JAMMA and buy a ms pac to JAMMA converter (so that I can switch between the original PCB and a Jpac)
-leaving the original as-is and getting a Mike Doyle 96 in 1 or an ABC board
-perhaps doing both of the above (convert to Jamma and upgrade the original board)
Am I nuts for taking this on and trying to save the original hardware?  I'm attaching some pics so that you guys can take a look...
This is going to stay in my garage so I am not too concerned about the external cosmetics (except for the CP overlay, which I will replace regardless).