Well my car was completely stock, so far
HKS 3037S56T
Manifold
Clutch
Cooler (you already have)
ECU
EBC
full exhaust
wastegate
CAI and podbox
Plenum
Wheels
Cradle bushes, and hardmount bushes
castor bushes
Coilovers
strut braces
sway bars
several tunes for different stages, ranging from 200 to 600 a go
Body kit (I justified this cos I wanted a big hole for my cooler)
Cams
Cam gear
Headgasket
A second plenum cos the first didnt deliver
injectors
fuel pump
and a few other bits that dont rate a mention. I had a mate ask me what I had spent on the car to day (before another 1.2k for a plenum, or actually getting the cams and head gasket and new plenum fitted, which looks like it is going to cost 1.5K all up with all the added gaskets, head skimmed etc) and it was just on 30K so already that is closer to 35 (still have brake upgrade to do and camber arms and tyres)
the biggest problem so far is getting the power down - I have 256 at 1 bar, but on 1.2 bar (not sure what it has) I cant get traction in any gear, so I will be buying some rear camber arms and some nitto tyres - hopefully sort it out. I have the head gasket going in this week, hopefully tune next week.
Just a decent turbo set up is going to cost you close to 5K all up, need a decent ecu tuned (2K+), and a good clutch(1.2-1.5+), fuel pump(400 and injectors(1k)
With the mods you have, you may just make it under 10k, but dont count on it - you still have to install the injectors, clutch and fuel pump - there is another 6-700. the above costs are conservative, like everything else the costs always blow out.
Good luck - but I seriously doubt you car will be very driveable with a 700+hp turbo. Much better off going for a good steetable setup.