Thorp Air Command - T18.net

I deduct about half my mileage as well as an equal percentage of the maintenance and upkeep on my truck but I have started using my Thorp some. The problem is neither me nor my CPA have any idea how to track the aircraft use for deductions and there isn't a CPA that would within a reasonable distance. Is anyone here using their aircraft for business travel? If yes, how are you tracking it? Thanks.

_________________
Thorp T18
O-320-B3B (160 HP)
68x74 Sterba Propeller

"The joke in aviation is, 'If you want to make a million, you'd better start with £10m.' " -Bruce Dickinson