Alpha trim sender Is there a rebuild kit?

[santuitman01]

Hello
My trim gauge started acting crazy and after reading through these forums I determined it was the sender. I pulled the sender apart and found one of the two wipers had broken and the pieces were stuck in the switch. I pulled out the pieces and cleaned the remaining contacts and it is working again but after looking at the part it would seem the wiper should be replaceable. I can't seem to find anything anywhere though. I'd hate to spend a few hours replacing them if I could rebuilt it instead.
Thanks in advance
Brian