A new $20 Collins HSI bezel for a 4" electronic HSI. I'll probably install a filler plate in the lower one inch area and install the back-course switch there. This should screw right into the 727 MIP with no alterations, but I won't know for sure until it arrives.

A brand new Sony PS1 to hack up for my HSI display. I hope I don't screw this up. I looked at several available, but this is the only one that came with the wall-wart.

This is an inch narrower than the opening in the MIP, but I think I can work around this shortfall.