Turtle, not sure where you live, but if its convenient, go to Scotts Motor trimmers in Wangarra. They can re work your current seat to suit you, and the workmanship is excellent. They reworked and lowered my seat and its comfortable as.
Just looked at the member map, its a bit of a way to go, but it could be worth it. Maybe there is a Motor trimmer in your area that could do the job