Hi, Welcome!
The 924 doesn't really have much to offer you, really. The strut housing is a late 1303 part, the stub-axle may have the positive camber problem same as 944, I haven't tried it myself. The brakes are more powerful, slightly. The bolt pattern is like half the European and Jap small cars, so near infinite wheel options are there- for small wheels like 15*6 because of the coil spring diameter. The rear drum/trailing arm is basically T1 with the 100mm (?check) PCD If you want to lower it aswell, it probably isn't worth it IMO. It's hardly even an upgrade. It's a bloody shame the strut top bearings are different
It will have nice VDO guages including a 4cyl tacho, seats maybe?, seat belts, the electronic wash/wipe relay can't be too hard, it's standard on my '79, etc.
The 'rack is just wrong I think. Porsche spindles need the track-rod end inverting.
I'd be getting the complete K-lambda FI if it has it. Awesome stuff for your ACVW motor
Cheap is good but if it's not right, the right part just got more expensive. Hope that helps
Matt