Thanks for the wright up on this oil pan removal. Everything was just as you said. I do have a suggestion that should help in the install and any future disassembly. Before I put the Infamous U bracket back on I created a slit in the 3rd hole on the firewall side of the U bracket. Putting that last screw in with the oil pan off the car is much easier than with it on. By putting the slit in the bracket you can start the screw first than slide the U bracket up and install the other screws by the air compressor etc. By putting that slit in the bracket I could install it in less than 10 min.
I hope that helps. Hack saw and hand grinder to create the slot was less than 10 min. I found it was much easier to remove the air compressor than fight the clearence issues.