My budget was sub £20k so horses for courses. Had ML in a previous IS250 and it didn't really impress me, car's not a good environment for serious listening in my opinion.
Yes, burgundy with ivory is a stunning combination, good luck with your search. I wouldn't let a colour combination cloud my judgement where basic stuff like service history, mileage, condition etc. is concerned.
Yes, a LedZep fan, unfortunately I was in school when they did most of their performances 😢.