Jordan 12's For Wide Feet.

Hi im considering buying some 12's soon, im size 9.5 (UK), with wide feet, and all i can find are size 9 and 10's( on eBay). Should i go for the size 9, as i heard that 12's run quite big,(taking into account my wide feet), or should i go to the size 10 or will that be too big for me? 

Thanks In Advance!