Until you get a better answer and bear in mind I'm new to the SV650 family of Motorcycles if it were me I'd buy this,
http://www.ebay.co.uk/itm/Suzuki-Sv-...MAAOSw2xRYmNuX
and sort out the other one or not if the 2nd hand one worked.For £12.95 it's well worth a punt IMHO.