Welcome to the club, Alex.
My S type is Indigo Blue with Dove leather, also. Nice combination.
I have heard that there is a very good indie in Milton Keynes - several members have commented on how good they are.
I have a Nextbase dash cam that connects neatly with the power socket in the armrest cubby. From the windscreen the long lead fits into the slight gad, runs down the "A" frame kept in place with a couple of small pieces of foam rubber, under the carpet and into the socket. If you want it hard wired, there are quite a few auto electricians who advertise, and you can usually find a mobile service.
Let us know how you get on.
Regards,
Peter.