Installed GSA 28 for pitch. Fit pretty well the first try - no big tricks.
Installed the the heater box on the firewall - again no problems. A little tricky to align alone. Had my wife come out for 5 minutes - made a huge difference.
Installed the relays. These were a pain in the butt aligning the holes in the doubler plate, and both relays. Had to trim one relay bracket. Finally went together w/o too much bloodshed.