I used this French company to rework my seat (std height) but they can raise yours or you can buy a seat outright with no need to it send them. You do have to have their design, but you can choose materials, colours logos etc, all customisable from their website. The quality of the work was excellent, price reasonable and very helpful (yes really !!). They also can communicate in English very well and you can choose the English version from their site.I’m after a standard or higher seat. Can buy or swap for my Corbin lower seat.