In reply to LJ_London:
As said above climb it as in graded climbs eg ropes, harness, axes, crampons...
Or do the main path which still requires walking axe & crampons..
Big difference, & also how much winter stuff or either have you done as even an experienced non guide person might not feel comfortable taking a complete beginner up one of the hardest winter summits in the UK & having spent the past 24ys Scottish winter mountaineering I have see most things on the hills! & the Ben in winter is no place for a beginner unless with a guide or a couple of experienced non guides.