Looking for a 2nd pair of powder skis, looking at:...

Hi, I'm a Swedish dude living in Switzerland and thus skiing the Swiss/French alps. I already own a pair of 179 Line Prophets 98 2012/2013 as a one ski quiver however I'm in search of a powder ski, I might find an on sale pair at the end of this season or wait till next year's models. Anyway I'm 19 years old, 5Ft11/12Inches and weigh 150 pounds . I am an advanced skier , I ski fast and aggressive and I love hitting powder wherever I can find it, however I have not quite experienced pure backcountry / steep inclines. Despite skiing really fast in places where I perhaps shouldn't I am a big scardy cat going off any big kickers / natural kickers throwing down big spins (I can 360, sort of land 540) and flips are a no go, I was never acrobatic but I may be willing to change that this year (I do like getting air though). I can ski backwards kinda alright as well. I'm not suppressed that much by any budget. I also have a pair of 2012/2013 Full Tilt First Chairs with an 8 flex if that helps too, might have to switch to a 102 pair anyway. I am looking for something sub 120 as I don't think I can justify purchasing anything wider than that. So naturally I have looked at the Line Opus', K2 Petittors, Armada JJs. Since I'm located in Europe I am unfamiliar with ski brands like ON3P and Moment but they look like great skis so maybe I can somehow land a pair. Anyway I would love to hear your suggestions . And furthermore I ride 179s now even though I'm 5ft11/12inches but I should be looking at something like 185-189is right? Any marker binding insight would be great too. So ye thanks for your help! I would love them to be great on the groomers too but I have the prophets for that anyway. Would be nice if they're capable of small/sharp turns too