My 2013 Tri Glide is located another state at this present time. I will not be able to get to the trike until a few months from now. I am looking to send the stock seat to Mean City Cycle for some modification when I get back. I currently have a box for mailing the seat (36L X 22D X 13H). I am not sure the seat will fit into this box for shipping. Can someone tell me the approx. measurement of a 2013 stock Tri Glide seat? Thanks!