Progress on the project has slowed down a bit, as I'm waiting for a hanger to become available. Decided to attach a tow bar attach point to make it easier to maneuver around a hanger...if I ever get one! The aluminum locking collar is from McMaster Carr. (Got the idea from a Rick Spriggle post). The round aluminum bar is 5/8" diameter, so Cessna style tow bars will fit. The bar length, not counting the lock nuts, is 4". The fairing was cut to clear the assembly.