35s with a broken Enter key... worth repairing?

[John Galt]

Stupidly, I dropped my 35s and it somehow wound up with a wobbly Enter key. It still works, but you have to press the middle of the key. Pressing its right side is dead.

I understand the calculator is disassemble-able, but what am I likely to find once everything is apart?

I just bought a 50g to replace it with, but its upper right-most key is difficult to press, so it's going back. Lousy QC. Now I'm undecided what to replace it with.