This is the fuel sending unit that was in the tanks of the Southwind...
Medallion Instraments #B-1321

Is this a common part i can find at any auto store...or is there a common fuel sender i can use in place of this?
while i have the tanks out, i would like to replace this one, and add another one to the other tank and use a toggle switch to view either tank's level.
i dont have time for mailorder as the tanks should be going back in today (pending a call from the repair shop)