Busters Accessories in Wales do one for the new shape SV for STG16.50. Only really worth it if your ardering a few bits as the shipping's a few quid as well. Great excuse to buy a few extra bits though!!
Try Glasshouse MC's - 01 4097 888 - they're our neat the Long Mile Road
or try Cotter's -
http://www.cottermc.com - some good deals on the website!
Hope this helps...
Seán.