Need help with a Mastercraft Seat measurement

I have a Synergy cage being put in currently and need the correct height for the 5 point restraint shoulder bar. The Mastercraft Baja RS are on order but they won't be in for two more weeks. Does anybody have a pair of MC Baja RS seats in their JKU and can you get me a measurement from the floor behind the seats up to where the shoulder harness belts penetrate the rear of the seat.

Thanks!!