Morco D-51 instant water heater for boat caravan etc (Trevor LL20)

Rebuilding my boat and moving away from gas water heating. This works ok. Could do with a little cleaning up and the thermocouple either replacing or bending back into shape. I've never had any problem really lighting the pilot light by heating the thermocouple up with a matchstick. Must be installed by competent person as gas is dangerous stuff!