http://www.summitpost.org/ofenhorn-punt ... ola/151157
I didn't find much info there about the northern side sadly. So yeh I'm pretty much sticking now to the plan B that I go and do just a short trip to climb one weekend and burning (just hoping it's possible in my new company) my holidays later on. Or well I'm now also trying to figure out if there is something fun in Chamonix during first half of May.
I'm reading one book at the moment and a mountain called Blanche de Perroc was mentioned in it but there is like no information about it on the internet it seems. According to the text I pictured the climb pretty fun steep icy route.
Edit. Also browsing some options in Ecrins now. For example Roche de la Muzelle coulouir seems fun.