Whats involved in fitting s13 injectors

[turbozx]

As the title says i need to know how to fit them, iv done a lot of searches but im un sure

Can they be fitted to the std fuel rail or do i need a custom one if so where can i get the work done

Do i need a dropping resistor?

Do i need an adjustable fuel pressure reg if so what type and can some one point me in the right direction ie make model supplier etc.

Im going to be using the apexi safc 2 to make the adjustments and iv already
got a walbro, t25, exhaust, colder plugs etc

Any help would be greatly appriciated