Hi Janine and Walter,
welcome here in this great group and good time with your wonderful ship :-).
I'm the proud owner of the 1981 Sharki Baghira (Nr: 42).
I attach two manuals for the Perkins 4108. In GB are some good addresses for spare parts. When you need the addresses, I will be sending you the contact.
But I'm searching for a manual for the original autopilot with panel etc. myself.
So, when somebody can help us, I'm very happy, too.
Good way and careful wind