In reply to Kemics:
I only just noticed the remark re girlfriend. I may be able to understand why you want to impress her, but I'd guess, unless she has experience and/or confidence at dealing with exposure, then this is going to end up badly. Summer, perhaps OK. Wet, cold and frightened is going to be her experience.
Is this her first experience of exposure? Is it her first experience of hill top winter conditions? And has she worn crampons before over rocky terrain?