My brain hurts from this evenings' math sessions, but in 12hrs prototypes version one for the rear brake caliper mount and rear parking brake caliper mount will come out of the 3D printer. Then I'll be able to see how close I am, and I can make changes off of simple planes (not on a weird 34.3 degree angled slope).
So, despite the cost of the Subaru Brakes rear brake adapter kit, I've decided I'm going to modify the hubs and use them on their own. I'll need to remove the stepped lip from the outside, and narrow the backside by 12.5mm to put the mounting face of my brake setup in the factory drum location.
Despite surprising little to hold onto because of the step on the nose, I managed to get the runout to less than 0.001", which is good enough for me. Lots of little passes on my lathe, vs what I could have done on Scotts, but one down...one to be done tomorrow night.
I would have gotten the second one done, but we hit a brewery for dinner and beer instead. :P
-Dave