In reply to Hidden:
Have been a few times. The Spazzacaldera is much closer to the top of the little cable car which runs from above Vicosoprano than the Alibigna hut which is up above the dam and on the other side of it (30-40 mins as opposed to 5 mins) so to climb on there it is more convenient to just go up for a day. The Alibigna hut is nice but very busy at certain times with walkers, so you should check availability first. There are good bivvy spots up above the hut. If you intend to climb routes on the Punta d'Alibigna this saves you the rush in the morning and you pretty much walk downhill to the start of the routes.
For the Badile there is a good bivvy on the col at the base of the north ridge. This saves quite a bit of stumbling around in the dark if you are coming from the Sasc Fura hut. It is also a quite brilliant and atmospheric place to spend the night before climbing a truly fantastic mountain. I have slept here in just a down jacket in August (cold but ok), and in a very light sleeping bag and all my clothes.
Descent to the Gianetti hut after the Badile is recommended. Good food and not too expensive. Hitch/Taxi back around is much more pleasant than rapping north ridge (although someone will be along to say I'm wrong) or worse, the death march over the cols back to the Sasc Fura.
The Mellor guides are ok but quite old now. We found certain less travelled routes where the topos and description were 'vague' shall we say. This Cassin too is good: www.pobega.ro/cassin-piz-badile/
The Plaisir book is good and accurate, if a bit limited in the mountains. It also has some of the crags just over the Italian border in. These can be combined with supermarket shopping in Chiavenna on rest days. Camping at Bondo is much better and cheaper than at Vicosoprano. There is plenty of shade, free firewood and really good, hot showers.
Have a great trip.
James