Pitot heaters

[WHarder]

I have started working on a C337 that has a pitot leak. It apparently had 2 ASIs and 2 pitot sytems, left and right. My service manual only shows one in the left strut and no option for a right pitot.
Is there an option for the right strut and can anyone provide me with a part number for the heater pad/seal itself?

The aircraft was owned by "Alby Mangles" who did movies of his exploits and the aircraft has had many cameras and radios fitted at one stage or another. It is currently flying low sorties as shark spotter in Australia.