The quote for full service sounds reasonable being a main dealer (consult your owners handbook to se what is done for the specific service).
A piece of advice on using an independent dealer/garage is based on the fact that the car is 10 years old and some have different expectations on quality.
I bought my 2001 mod GTV 3.0 V6 privately in Germany. Got a friend of mine that lives close to Munich to get the car (I wanted red with tan interior so choice was limited). Car was ok, but I got it checked by an VW/Audi dealer that he uses in Rosenheim and they said that that the car was in good condition, needed new battery and the drivers seat was a bit loose. Hence I decided to get the car re-painted.
Before flying down from Norway to pick up the car I decided to have Autohaus Abraham (Germanys oldest Alfa dealer in Rosenheim) to have a look at the car and the list included:
- Change timing belt with water pump, leaky radiator, rusty support for radiator, no pressure on ac, incorrect assembly of doors after painting, missing/damaged seals at doors, needing new struts (gas support) for bonnet and trunk, faulty shock absorbers, illegal tyres at the rear (run-flat tires), slack in all rear suspension arms, slack in front wishbones, etc.
This was at 99800 km. The car had as I wrote been checked at Audi/VW who did not see anything and also had a 100.000 km service stamp from independent italian specialist 300 km before.
Upon picking up the car Autohaus Abraham, did not allow me out without going through the 5-page pullet list on items, took the car into the garage where all the used pars from my car was kept until my arrival and went through every single item. A very impressive and tidy garage and good foreman/werksmeister.
Needless to say the car feels like new. Based on above (and other experience) I am reluctant to some so-called independent specialist garages….
(This should obviously not include all as I know there are many specialist dealers with better understanding of the car than some established dealers. Not to mention interest in the car/brand)