Ah yes, lest we forget. My final list:
Oil 8L
Oil Filters 4
Hose - various
Primary Fuel Filter - 6
Secondary Fuel Filter - 2
Belts - 3
Injector Nozzle -3
Glow plug - 3
Fuel Lift Pump
Impellers - 2
Pencil Zinc - 2
Raw Water Pump
Heat Exchanger Gasket 3"
Thermostat 160 deg
Thermostat Gasket
I haven't disregarded your other excellent recommendations - it's just that most of them have ended up on other lists - not my engine spares and supplies list. There are a few I left out - head gasket, fresh water pump, oil pump. Still noodling on starter bits - need to talk to the tractor store...
Ooops. Edit. Forgot the alternator and regulator. There's a new one that's part of another list "Electrical Upgrades". The old one will become spare...