Thinking the very common smallblock chevy fuel pump gasket works fine there, the two bolt one not the four.
Early 2.0 uses an odd pump, with a vertical bolt pattern. Not sure for the 2.3 as I don't have one, but the part listed on O'Reilly's website does look like a standard SBC pump, so it very well might work in that application. If you have a 2.3, parts availability shouldn't be a big issue, since they were used in tons of vehicles.
Site says the 2.8 uses the same FP gasket as the 71-72 2.0's. YMMV. What motor are you running?
I've had good luck with sourcing parts from RockAuto.com, if it's not something of immediate need (shipping time).