Here is a tip to resolve the MC fit into the brake booster. You can use a booster from a 90 Civic or a 2G CRX. The code on the top of the booster should read NM-205V-3. The 7/8" bore MC will fit into this booster without modification. Only one thing to note. You must use the spacer plate on the Civic so that it fits properly on the firewall.
If you get the booster and MC from the 90 Civic you won't need to pull the one from the Teg. It is a 7/8 bore. You may have to do some adjusting on the length inside the car. I haven't got that far yet. So far everythng fits on the outside.
I have pics if anyone needs them for comparison. JS