Magnum wiring help

I am not sure what pump to run. I read on here from the fellow that made the harnesses, to run the Lincoln ls pump with the Dakota regulated fuel rail.

I have also read that it is best to use the factory in tank pump. .

I would consider either.. gas tank has got to come out regardless.

There was also mention that the ram van pump is shorter than the truck pump..

I asked about evap because there was talk of it a few places but nothing in detail.

I really don't know much about modern cars..
But it can't be that difficult.. right..