Saving Old Seagulls

I am looking for cylinderhead gasket for Anzani 65 /Perkins 6.5 hp engine. Any Idea where to find?
Regards
Olli

I think I have a used one, or should I say, I have a complete dead Perkins in bits.

Thanks Keith. I found a company Ollie Marine Supply who have allmost all parts for Anzani/Perkins/Oliver engines. I have ordered one now from Ollie and waiting it now.
Thank You anyway.
Can you help with Anzani SuperSingle gearbox?
Regards
Olli