chances are you will have a few days without fresh snow. you just have to decide if you want to spend those days shredding mogs on fatties or not
if i saw some bombshell with chanel skis and a leather sex outfit like that when i was skiing down the mountain, i'd be too busy staring and drooling and then i'd fucking sonny bono the shit out of some trees.- MarkieR
i would just go with the billy goats, you should be able to find decent pow or relatively fresh snow pretty much everyday of your trip even if it just snows a little, if theres no extra charge i would bring them but otherwise i would just think they are a hassle
to the 50lb comment, i fit k2 seths and disorderlies with px14s/pivots on them in a single pair ski bag, with clothing in the bag, and still came in under 50lbs. ON3P stuff tends to be pretty light, so it's not unreasonable to get two pairs of skis in one bag under 50lbs.