oil pump options for pressure oil center main

[M2M]

A number of people have suggested I consider a system that provides pressure oil to the center main to extend it's normally short lifespan. Does everyone agree this modification is a good idea?

Stipe makes an alloy hi-volume oil pump but it's more than $350. Are there other oil pump options that work well, but cheaper? Someone mentioned to me there's someone on the forum that modifies v8 oil pumps for an A, anyone know if they're still in business?