Ah, I'm with you.
The biggest decision is if you're going to "deadhead" the pump (no return) or add a return as there isn't one on our trucks. If deadheading, you need to pick a pump that's made for that.
The second issue is wiring - it's important to have an oil pressure switch.
It'll take a while to get the details worked out, but it's not that big of a deal. It isn't cheap, unfortunately