You can use the MSD crank trigger wheel but you should buy the Holley pickup. You don't want to use the MSD magnetic pickup for EFI. Rich can sell you the cam sync and anything else you need for EFI.

I think the intake choice is up to you. They'll probably all work roughly the same so it depends on cost and which way you want to go. I think the Stage V setup has the best chance of making the most peak power but it will also cost the most since you'll need two throttle bodies and a more complex throttle linkage. You'll also have to fabricate some sort of air cleaner. I wouldn't go to all of that work for a street car.