A8 4,2 Built.'95

Hi,
I was offered an A8 4,2 year ́95 1.Hd today, now the question is what such a car is worth,I know this is an early model,but the KM-Stand of proven 30Tkm is already superior, besides in my color silver,E-Sitze etc.
The offer came from a car dealership, which of course also wants to earn, but I should get it before it is made "ready", so it is passed directly from the customer to me.
Are there any calls back from Audi for the early A8 (crossbar, etc.)?
Greetings Thomas