Megasquirt Options For Turbo 318

Hey guys, getting close to needing a FI setup for my stock 318 short block build. Here are the specs:

Stock 318 magnum block and pistons with arp rod bolts, fresh hone and .030 ring gap w/ cast rings
Hughes Iron Ram magnum heads w/ stock valve train and pushrods, arp head bolts
Hughes springs what will work well with my cam
Comp cam hyd roller with 115 LSA, .490 lift w/ 1.6's, 218/218 duration @.050
Stock barrel intake with a hughes kit to fix the common oil leak
40 lb. high impedance injectors
Chinese T-70 turbo, .70 a/r
Dakota exhaust manifolds
Tial 38mm wastegate, turbonetics BOV
Haven't decided on an intercooler yet

Car specs are:

73 Duster, Rebuilt 904 trans w/ 5 disc front clutch pack
2800 stall converter
3.55 SG rear end
Tire size is undecided

Need some help picking the right FI system. Megasquirt is awesome but need some input on which one to get. I can solder everything myself to save money. Anybody running MS1 with a turbo with good results? The main difference between MS1 and MS3 is that MS3 can run a lot more outputs and fire 8 injectors separately, while MS1 is a little bit more limited output wise and can only fire injectors bank to bank. And I'm not sure if MS1 can retard boost timing