Re: Servicing in North Yorks
Piccadilly are one of the better dealers, I wouldn't have any quarms about taking it there unless you find they are too expensive.
Alwyn Kershaw are pretty good too, Peter was one of the last few old Alfa mechanics still in the business but he retired this year leaving just the younger guys, I honestly don't know how good they are. Probably fine on a 156, maybe less so on the older generation 105 and 115 series cars.
Also maybe try Wynn Lear in Keighley, he has a good reputation too.