If you search here you will find an upholstery firm in Leicester who carve about £25 to transform you standard seat without changing look and cover. I had it do e about 5 years ago - great service and now very acceptable.
2000 Black and Gold with MRA Screen, Motad Venon Exhaust + Custom Stainless Ankle Guard, Bagster Tank Cover, Dash Clock Cover + 12V, Facet Fuel Pump, Givi Crash Bars, Givi Pannier Rack (Modified for Stahlkoffers), Givi Top Box, Stahlkoffer Panniers, Pro. Mod. Seat, CR Footpegs, Michelin Anakee 2 Tyres, Sat Nav., Hel Stainless Brake Hoses, K&N, Headlamp Mesh - oh! yes. Huge Nut attached to Handle Bars