Looking for old Yamaha RX-Z 2 stroke engine

[Merci]

Hi, i would like to buy a Yamaha RX-Z or Y125Z engine... Engine swaps are possible in Europe and i own a old Yamaha RD 100 with a dead engine. Twostroke bigger than 125cc was banned in the early 90's.The RX-Z engine should fit plug and play so i don't have to destroy the frame. Emissions control can't say no to 133cc because the bike is from the early 80's.

I will get a RD 100 engine later to make it a real vintage bike - will be streetlegal forever. But the RD 100 engine isn't fun at all

Please help me getting something Special.