R8 brake disc replacements

[Kingswood]

Morning all, my Audi has just come out of routine service and they've identified that all 4 discs are pitted/corroded and have quoted circa £2.6k to replace them all. No issues with advice per see but 2 questions;
Does anyone know any good indys in Surrey who could do it cheaper
Might it be possible to skim the discs or make them 'useable' .
Car only gets used at weekends so managing costs always helpful
Thanks in advance

[Kingswood]

I have a couple of pictures they took. I'll dig them out and post .

If anyone has a garage rec. let me know

Cheers

[Kingswood]

Afraid can't find photos . Any garage recs appreciated

[Kingswood]

Same can't seem to PM you Turborich

Thanks