Sad day for HP-41C

[larthurl]

This is my original HP-41C that I bought in 1980. I used it heavily and then about 1990, it went into storage. I re-discovered it about a decade later and saw that it had battery damage from leaking cells.
Today I decided to open it up and discovered the blue crud. Not sure if cleaning the crud will revive this old friend. It clearly needs a new battery connector.

Any thoughts on how to proceed?

.....Art