Considering purchasing my first classic Mopar.

I'm fairly new to classic cars outside of anything GM and always loved the look of the older A and B bodies. I'm considering purchasing an old Duster and the research I found was there seemed to be an issue with the older bodies till the end of the 70s with having a mid sump design. I don't plan on really drag racing. Just another car to build and hot rod and take on trips.

My question is can someone kinda break down the remedies for these motor to prevent spinning the bearings and losing oil pressure ECT. I saw the truck motor pans had rear sumps but not sure if that'll fit over the k member.