I bought half a 93 WRX with about half your kilometers for less than half your price. I've got USDM WRX front brakes, version 6 sti 4.44 tranny with LSD, the jdm bodywork and if I want, RHD powered doors. Doing labor myself, and not caring about painting the car has me under a third your cost. If I get the car painted we'll see mre money spent. I wasn't trying for a super power build, I just wanted a WRX.
And it's easier to do than to think about. Ain't nothing to do it but to do it!