Fiddled most of the day doing "mechanical " type things.
Installed control tube and torque tube with their various fittings.
Ran the control cables for rudder, elevator, ailerons etc. Found difficulty getting enough clearance at the front rudder fairlead. Easily fixed by reversing the direction of the nut and bolt that secure the front torque tube bearing.
Permanently installed brake master cylinders with castle nuts and cotter pins
Doesn't sound like much but took all day as everthing is somewhat difficult to access.