Hi there, may I put forward, a (perhaps) sensible suggestion:
Search eBay, for a damaged BBS Split Rim alloy wheel; buy it - and therefore, you may end up with 16-20 oe BBS bolts..
Thus, resolving your need for 5 bolts, with a good few spares, should you have an issue, - when re-building the rims!!
Cheers..
Just saw this on Ebay..http://www.ebay.ie/itm/BBS-Jaguar-BMW-Mini-VW-Audi-Mercedes-Porsche-Alloy-Wheel-Split-Rim-Bolts-Genuine-/171169571124?pt=UK_CarParts_Acc_Wheels_tyres_Trims_Car_Rims_ET&hash=item27da806134
Went and bought some off Ebay in the end. They're not quite the same as originals slightly thicker on the cap but you have to be lucky to spot the difference. Only needed two
Had PM'd you a few times but didn't get a reply so thought you had none too spare.
No worries