Check out "Mean City Cycles". They have done a few for me. They will take your stock seat and custom fit it for you and it won't cost you one of those short legs. (sorry-can't help myself)
I was told by " my guy" that there was not enough padding in the stock seat to lower the seat....
" Truth is often deemed rude, blunt and to the point which is why so few make their friend " Freddy Hayler ..352-267-1553 Sanford, FLA Gutterman6000@Gmail.com