Just an FYI -
I bought two of those same seats in the last year, and sold two similarly sized seats. One seat came from SC, and one from west-Texas (I live in central Illinois)... both cost about $30 for shipping. One of the ones I sold went to Galveston, and it cost about $30 to ship. The second one I sold, went to upstate NY, and it cost about $30 to ship as well. Some of them went via FedEx and some went by USPS.