I may have one that I was going to put in my e30, if you haven't found one by thurs I can check then
Currently: 2002 C5 Z06, 2009 335i, 2012 M796, 1976 XS650
PM me for your sidewinder (laser cut) key blank and cutting needs. Have OEM pre-ews keys and replacement shells. Can do (almost) all BMWs up to 2008!