In reply to Full moon addict:
1.5-type boots that have a thin sock-like inner would be good. Similar weight to singles but for overnights a removable inner, and little/no leather to soak up moisture. Arcteryx Acrux and the Mammut 6000s are like this. I did 6000m peaks in Nepal in singles 20 years ago and it's fine, don't fall for the hype but do take advantage of the newer, lighter gear especially boots and crampons.
And yeah, there's no way you need a full VE25-style tent. Something with a good UV pedigree, probably self standing. Something like the Hilleberg Allak tents. Could obviously go lighter but beyond a point you lose livability for longer trips.