Price guidance for 19" alloys and AMI

[Diablo]

Gents,

After 5.5 years of marriage, the time has come to move on from my current A8

A dealer is buying the car off me, but has given me the option to return the car back to standard.

Please can someone advise on what 19" (Genuine Audi 5 Arm) wheels are worth. They have very good tyres, but wheels need a refurb?

I also have the option of removing the AMI unit and putting the changer back in, so a valuation on that would be very helpful.

Thanks in advance,
D