Hi Welcome to RG. The UK is actually one of the "safest" places to import a replica to. There's usually no problems but if you're worried you can use Reg (Narikaa) that is UK based and Torobravo which is EU based, that way the parcels don't go through customs.
There's always a risk associated with buying a replica but in the UK is pretty small, and if you use Toro or Reg or other UK based dealers its pretty much non existent.

Good luck and have fun.