Hi mate. If you look at the parts manual on this very site, you will see the frame numbers listed for each model of bike. There should also be a sticker on the top rail of the rear subframe which lists the codes for the bike - ie model code and paint codes. In your case, assuming the plastics are original, it should be an R2R which is the 1994 year model. Not sure if that will be of any help for the DVLA?