Need a new fuel sending unit and possibly a tank, 73 RR

Dang fuel sending unit took a dump, Any recommendations as to which one to get or not to get. Also while I'm back there might as well change out the tank being it's the original piece, again same deal anyone recommend a tank to buy and ones to stay away from??? I think the car has a 20 gal capacity????

Rock auto has both, couple of choices.

Fuel parts

5% discount code 10471606340824267

Thank you