Hi Peter - welcome to the forum.
Your only about 13 miles away from Greers in Glengarnock. I've never used them myself (too far away) but plenty of folk on scottish scoobies have and they seem to come highly recommended.
Maybe worth giving them a call or taking a nip over to get them to have a look at your car - don't take your wallet though, or you'll just end up spending loadsa money on mods!
Greer Sport Racing
(01505) 683388
Block, Unit 2 Caledonian Place, Lochshore Industrial Estate, Glengarnock
KA14 3AZ
Beith