Hmmmmm, what did I do today? Went off the deep end that's what. Arranged to buy a mint 2017 STI drive train. Having it shipped directly to RalliSpec for longer 5th/6th.
Also, been talking a lot with friend of mine who has a realllly nicely equipped machine shop in his garage. We are going to do everything within our power to do a hub swap with the aluminum trailing arms. He thinks we can do it and retain ABS, I am not so sure.
Will probably be starting a thread soon to document everything.
EDIT : Cropped photos, no need to show a stranger's garage anymore than necessary.