My Selespeed came from your area and the car was serviced at 2 garages in your area.
Parrys , Northgate Huddersfield looks on the invoices like a Fiat/Alfa Romeo specialist.(Possibly used for warranty work so watch out for prices if he main dealer)
After that the previous owner used CW Lear Motor Engineers / Alfa Romeo Specialist
Rectory Row, West Lane Keighley. Phone 01535 664559. I phoned these guys about 7 weeks ago to ask some questions after I bought the Selespeed . They were extremely helpful, had the full history of my car on computer sent me its full history and never asked a penny. Its only 20 miles from Huddersfield so I would try them first.