Oil pump model fitment question

The first one is OEM or an older replacement. The newer ones are like the bottom one, only use 5 bolts to mount. If it's just the outer cover gasket leaking fel pro and victor used to have the o ring to seal that, shouldn't have to even pull the pump out to fix that
Yeah that’s an exciting prospect cause I really didn’t want to have to pull the oil pump until I’m ready to rebuild the motor. The pump works fine. It’s just having trouble because the oil has been thinned out by gas lol. I had to buy gasket material and make my own gasket(pump to block) because I couldn’t find anyone that had the gaskets in stock so I really really don’t want to have to replace that. It only appears to be the outer plate that’s leaking, so if I can grab me one of them O-Rings I should be good to go for another 50 years lol