anyone got a list as to what cars or bikes even) have what resistance sender unit ?

i am lookin for something to be either 100ohm or 510 ohm
all the car ones i have seem to be 220 ?

i am hoping to butcher a sierra unit, for the flange and pipes, and attach something else to the bracket.

i did wonder about fitting a normal pot, but not sure if the plastics will appreicate the fuel

I'm pretty confident that the Landrover sender will do your job. They are 100ohm and available for about 12 quid from Paddock near Matlock but they do on line sales.