Thanks for all the info, everyone. I wanted to update this thread with my progress.
Out of sheer curiosity I opted for some inexpensive micro-switches.....
PROS:
- EXTREMELY easy to mount and regulate the switch actuation. It only took me a couple of hours to mount and solder all of these. Cutting and trimming the wire/ribbon cable was the most time-consuming part in order to make it look neat and clean.
- Cheap. I already had the MPC from MGB, so I just bought a 6' IDC cable and some micro switches on eBay. All in, about $50.
CONS:
- NOISY! Yeah, the clicking is quite obtrusive but since this is my home instrument and I always practice with some closed over-ear AKG headphones, I don't hear them AT ALL even when playing very softly.
So, if the clicking noise starts bothering anyone, it's just a good excuse to play louder!