Took a bit for components to ship, but I got the seat and harness transferred from the STI to the M4. Using the Brey-Krause brackets with the OEM manual sliders, and the BK sub-strap and waist strap bar/brackets. Pretty great combination that didn't require any modification to fit the Momo Daytona Evo.
Coding the car with E-Sys was a bit of a mess. Still have a SRS error, but the seatbelt reminder + seat airbag are disabled. Good enough with a 6-point, I'll sort out next week. The 3-point is definitely compromised with the Daytona, it's a narrow seat and there's no way to feed the buckle through the seat on the inboard side.
Spare set of Apex EC-7 18x11s arrived, waiting on NT01s to arrive. Supposed to arrive tomorrow, so hopefully they get on the trailer. Even if the rubber doesn't get on the trailer, Thursday lapping will be useful for fine tuning the seating position and the belts.