standalone efi question

[jm_2thow]

if i run a standalone efi system (89 3sfe and soon goin to put a 3sge and turbo in the future) do i need to get a new ignition setup?

I am not familar with the type of igntion systems these motors run. do i need to keep the ecu, stock sensors and all that stuff in?

i will prob get some sort of ignition upgrade like a msd box, what msd box should i go with if im going to be boosting?

i would like to go with a one coil per cylinder setup in the future with dual spark (i think thats what its called, im talkin about the setup where it fires once on the compression and once when the exhaust valve is open) how do are these set up? how much $$ would i spend on a decent setup?

im pretty sure these questions have been asked somewhere but right now im feelin pretty lazy