Turbo but keep a/c and p/s

[carayan]

I've been contemplating and doing research on going turbo on my current motor. I'm not in a rush but I am keeping myself to a budget of sorts (i.e. save money wherever possible). I'm looking to retain my use of a/c and p/s but I have a few questions regarding manifolds and turbos.

At the moment my motor setup is as such:

Head:
B18C2 Head
B18C7 Cams
B18C7 Valves and Retainers
B18C7 Valve Springs
Gates High Performance Timing Belt
ARP Head Bolts


Block:
B18C2 Block
Eagle Rods
JE Pistons (11.5:1)
NPR Piston Rings
ARP Rod Bolts
ACL Performance Bearings


Intake:
Skunk2 Black Series Pro Series Intake Manifold
Skunk2 70mm Alpha Series Throttle Body
EK Injen


Exhaust:
JDM DC2R 4-1 Headers
2.5" Mandrel bent system
100cel 'Ballistic' high flow cat


I've been looking at manifolds and so far this is what I've come across;

Speedracing
https://www.speedfactoryracing.net/f...turbo-manifold

Go autoworks log
http://www.go-autoworks-store.com/gocairbsedot.html

Go autoworks stainless log
http://www.go-autoworks-store.com/go...-manifold.html

GO autoworks stainless ramhorn
http://www.go-autoworks-store.com/got3acra.html

Spoolin performance cast log
http://www.spoolinperformance.com/st...roducts_id=457

Spoolin perfomance stainless log with external gate
http://www.spoolinperformance.com/st...products_id=58

Spoolin performance quick4ac
http://www.spoolinperformance.com/st...products_id=60

Neukin a/c ramhorn
http://www.neukin.com/ProductDetails...ode=NEUKINACBM

Turboelements a/c ramhorn
http://www.turboelements.com/index.p...product_id=213

Peakboost a/c ramhorn
http://turbostore.com/pebacra.html

peakboost log manifold
http://turbostore.com/b1cairt3tuma.html


now i've found a fair few, but the biggest issue is the sheer price difference from log to full ramhorn (considering AUD atm). Also I found that log manifolds dont always support an external gate, but that shouldnt be the biggest issue.


also, going on from this, I havent been able to work out what sort of turbo would be acceptable, given my high compression. I'm not aiming for power records or anything like that,. from what I know I should be aiming for a 0.63/0.68 AR rear housing, but im not sure what actual size compressor I should have.

fuel will be sorted via 255 either walbro or deutschworks but im also not sure on injector size. management I already have my s300v3. i think the motor setup should be responsive to boost, although ill be most likely running 98 just for economy sake (eflex is also an option possibly)


i apologise for the lengthy post and i hope someone goes through my links and what ive written and helps me in the right direction.