Icom key pad

I am trying to track down an RC-10(?) key pad. It's for use on the Icom 751. It's for a local blind ham who can not use his radio very well with out it. His has failed. If you klnow of one that it working and for sale at a resonable price please let me know. I'd like to see him get back on the air as he realy enjoys the hobby.

With out this it takes him forever to navagate around the bands and he gets frustrated and gives up.