GN250 CDI unit

I have the opportunity to get my hands on a GN250

I start my new job in London next week and don’t wanna take the SV up there so the GN would be great to bum around on. The only thing is its needs a CDI unit. Does anyone know here I can get one from apart from eBay as they have none?. Its on a 92 plate

Is it possible to use one from a GX?

have you tried the bike breakers that are in the mcn ?

Good thinking batman