SVA testing is only required for those vehicles that do not already have Type approval in the UK (i.e. not available as an official UK spec bike). So Chris99's bike wouldn't have gone through SVA or require a type approval number.

http://www.dvla.gov.uk/vehicles/exptimpt.htm

Not sure on the bike charges, but a car SVA is around £250 per car. Currently helping a neighbour prep his Integra Type-R for the test.

SVA for bikes is £75, i know because i have just done my KSR80 gag bike