to add something constructive, the going rate for a set of MV2s in fair condition is about £250-£300.
https://www.ebay.co.uk/sch/i.html?_from=R40&_trksid=p2380057.m570.l1313&_nkw=bmw+mv2+wheels&_sacat=0
you could help your case by stating exactly what tyres are on them - if they're bridgestone runflats, they're practically worthless as most people would be looking to ditch them for non runflats.