I need some advice

[letheal]

I am ordering a 3sgte and have some serious questions just not "will it fit in my car" like i see on every fourm. and you all seem like you know your stuff.
my car is a 4th gen gts liftback. and i just need some ideas about this setup im going to try to use.

im planing on using the stock ecu on the car, i dont feel like doing a conversion so also im planing on using the 3sge intake manifold and 3sge head if i need to and possibly removing the tvis butterfly valves then using the 3sgte shortblock. im deffinatly going to use the 3sge tranny but i was wondering if the clutch from the 3sgte would work. also another large problem is going to be management. i have no idea what im going to do with this. i was planing on running the 3sgte injectors and an safc controler and a a btm to retard the timing but I would like to know if any of you have tryed to use megasquirt or if theres any ecu chipping software like uberdata and turboedit for toyota ecu's. i realy dont want to shell out for somthing like a motec for just runing around 11 psi. i realy dont want to use an FMU just because cars usualy end up running realy lean out of boost and its just entirely to inconsistant of an a/f to have any real stability in the system. also id like to know if any of you use the cams out of the 3sgte on the 3sge head if i do happen to swap the head on the 3sge. i have the 3sge out of my car right now and if any of you would like to talk to me on AIM about this my screename is the same as my username here. id appriciate any help i can get
thanks for your time and try not to flame me to bad