Because it's on a T reg making 1999/2000 you'll probably find the tax is off a jincheng (easyrider) m50 model (early monkey clone),or so Honda c90 stepthrough if not a z50.
Everything considered though,a replica with front disc/hydraulic suspension ,125 engine,original Honda tank if it is,taxed and tested(?)With spares should be worth £400 when the suns out!