Welcome to the Sunbeam world. You will find this website to be very helpful in your search for parts.
There are other sites as well that are quite active and may be helpful to you. A quick search of the internet will reveal them.

There are are 2 very good Sunbeam suppliers here in the US that many of us work with – Classic Sunbeam can be found at classicsunbeam.com, the other is Sunbeam Specialties at rootes.com

Enjoy your Sunbeam!

from sunny South Dakota,

Paul 64 Alpine V8, 65 Alpine automatic, 66 Tiger MkIA, 67 Alpine with 5 speed.