SO I finally got a fuel pump, that’s the good news. Meaning I have nearly all the major parts for the heater. It’s a Walbro fuel pump with an added pressure regulator.
Sadly though I haven’t done anything for the last couple of days because ITS TOO BLOODY COLD to do anything other than huddle pathetically round my small electric heater while praying for death.
The lesson here (for those taking notes) is make sure you sort out the heat situation BEFORE winter, and especially before an artic front sweeps in and just sits right on top of you.