I know these parts fit well and are among the "cheapest" available
Diamond eye exhaust and DP
SDP cold side/EGR delete
HSP hot side (you don't need it)
Consider upgrading the silicone boost hoses while you're doing all this, PPE sells nice ones
EFI is your call, IIRC Henry sells moonshine tuning...it's good!
And get yourself a TransGo Jr shift kit for $90 while you're at it...