first off, if you are wanting to get into the backcountry get educated, don't go out without knowledge of avalanches and avalanche terrain.
I recommend taking an avalanche one course.
For gear, it depends on what you're doing.
From what i can tell, i would recommend getting some pow skis that you like to ski, not worrying about weight, rocker, etc. except leaving out anything crazy rockered or crazy fat
for bindings i would go with dukes/barons, it seems like you want something you'll be able to ski inbounds and slackcountry stuff
I tour on 191 on3p wrenegades with dukes, not exactly light, but i did a 3 day hut trip on them a few weeks ago and had no problems. i'd get a ski you like to ski, and not worry about weight etc.
IMO bootpacking/post hole-ing up, sounds like a bad idea, if you're not ready to fully commit to an AT setup, maybe look at BCA trekkers