If what you want is to use it with an Amiga, you'd either have to find a way to fit something like a cocolino inside the mouse...
Not a bad idea.
The tank mouse also had inexpensive contacts for the mouse buttons. After mine wore out, I tried to replace them with clicky micro switches. It seems straightforward, but matching the heights and location of the actuating nub was difficult. My repaired mouse never had a good 'feel'.
