Addison Cut off Saw Restoration

Hi, I got an old Addison Cut off saw cheap (think it is an old 250 model), when it was delivered the control panel on the front was smashed. The rotary switch was in pieces and had spilled its springs and tiny parts out.

So I decided to strip it down and paint and re-wire.

When I tested it it had a peculiar 4 position rotary switch, off position, two speed forward positions and a momentary reverse (which was really useful if the blade grabbed)

I have searched all over for a rotary switch with this configuration but no joy, does anyone have an idea of where to get one like this?

https://addisonsaws.co.uk/spares-and-service