If you're not feeling your best look for kits from somewhere like this:
http://www.bandcexpress.co.uk/
http://www.wemoto.com/
Be aware the SV650S (faired) uses a different rear sprocket size (44 vs 45) and chain length than the unfaired SV650.
Make sure the chain is an o-ring or x-ring (rather than unsealed) and I'd recommend steel sprockets rather than alloy for longevity on the road.
Factor in the cost of having a garage fit it as it'll need a rivet link tool to do this which will cost a fair bit for a once only use.
Jambo