They are all still works in progress.

The adapters for the rear disk is available. I think it is $140? shipped, for just the adapter. You will need to clearance some the axle's excess forming behind the spindle mount. Overall its how tidy you want the ebrake kit to be.

The k bar and the upper strut bar were a "one off" I could do both again, but the materials needed and work intensity involved in producing them make it sort of costly for just a few bars, shipping would be high too. Both could be discussed further.

The front brakes, at this point, i have discovered the front wheel bearings "interchange" with a few cars.
example:

Wheel HUB Bearing Front Pair FOR Chevy GEO Honda Isuzu Pontiac Suzuki Volkswagen | eBay

now that being said, I was going to attempt during my next brake job to bolt a scirocco spindle in place on the car. It might need different tie rod ends, and ball joint, but since the bearing is potentially the same I am figuring the splines for the axle were the hardest part to match up, since I would potentially be able press an aveo hub onto the vw spindle, i would be able to run up to a 11" factory vw front brake set up on a vw spindle and "simply" slide the the aveo axle into it.