HG replacement, yea right

[west_side_supra]

so my HG is blown. as you all know i was planning on fixing that, and well i have thought about it and instead of just doing a headgasket replacement i'm just going to do a complete rebuild on the motor in my garage and drop it in. the only problem with the motor in my garage is that it needs a new HG and turbo. so all the goodies i was looking at were about this.

ARP Head Studs (includes nuts) $134.29
ARP Pro Series Rod Bolts $49.26
Universal ARP Valve Cover Bolts And Studs $23.29
Brian Crower Valve Springs and Retainers $343.69
Brian Crower Stainless Steel Valves 32.5mm Intake $204.75
Brian Crower Stainless Steel Valves 28.5mm Exhaust $204.75
Crower Steel Billet Connecting Rods - 7M - Bushed Fit (Aftermarket Pistons) $1,146.20
Greddy Extreme Timing Belts - $135.81
HKS Metal Head Gaskets - Stopper (1.0mm thick, 86mm bore) $301.10
EGR Block Off Plates $45.00
Hose Techniques Hose Kits $68.00
JE Piston Rings $150.01
JE Pistons 83.50mm bore, +.020 over; 8.4:1 comp.(priced each) $773.64
Toga Main Bearings (20 over) $79.98
Toga Rod Bearings (20 Over) $58.65
Toyota Water Pumps $141.71
TRD Oil Filters $18.07
Yonaka Motorsports Complete Engine Gasket Sets $160.34

Total $3858.87

now just some questions about some things on there. JE pistons .20 over compared to the eagles .20, what would you say is better? if i remember right they both are a 4.8:1

same with the rods. eagle compared to brian crower?

valves,retainers,springs?

injectors i want to do RC cause i haven't heard anything bad about them, but what size should i go for? i don't plan on upgrading the AFM or going to a stand alone for a while i just thinking i should just prepare for the future anyways. trying for a 600hp at least.

turbo? any recommendations. i wouldn't mind something that can handle a high amount of boost like 25-35psi

so basically i want all the internals done and replaced with new ones "better ones" for future mods yet i want it to work with my stock fuel and ECU crap. tell me what you think

thanks guys for any suggestions :P