I'm (still....) working on a Motobecane Mirage mixte frame for my daughter that took some damage in a previous life. I've got the dropouts pretty much aligned, but the derailleur hanger is off enough that the RD isn't aligned well. Last night I started the process of bolting in an old axle to keep the dropouts from moving, while attempting to bend the hanger into shape. If I cannot bend it into submission, then the unthinkable... cut it off and substitute a chrome bolt-on hanger from my stock of cheap bike parts.