A start is it has magtek wheels . Does it have a dry clutch, adjustable front suspension . A resivor for the rear shock on the right hand side between the frame and the fairing ? To know if it`s a sp engine the barrels should be stamped L and a number . On the subframe there is a sticker it should have R8N on it which is the 92 rothmans .
If it is I would leave it with standard fairings and colours just tidy it up it looks good already
Hope this helps you out