Hey I'm right there with ya... I wanted an SV but couldn't pass up my bike a year old with only 618 miles and a $500 Arai Helmet thrown in for $4999 OTD...
I know that the suspension between the GSXR line and the SV's are interchangeable... but I don't know if there is a year range... (ie only 00-03 can be used for the SV)
I'm pretty sure your suspension can still be used on a SV but don't know for sure... that's a question for the SV folks.