Specific needs -backpack help

Hey guys I know there's been many threads on ski backpacks but I kinda have specific needs for a ski backpack.
Basically I need a pack that will hold all my ski gear and base layer / outerwear. I've thought about getting the Line pack and hanging my poles, helmet, and boots on the outside somehow (boot power straps over one of the ski holder things, ext).
I will be taking all of my ski gear on the bus every day in the morning and night (my bus takes me right past my home mountain so they'll drop me off at night). Last year I had my school backpack, ski boot bag with my boots / ski clothes / helmet, and then my skis were just loose. It was a hell-of-a-lot to carry on the bus. I am looking for a pack that is durable and has vertical or this kind of carrying system on the back ----(/)-(sloped).
This year my goal is to go down to a ski backpack and a school backpack only. It would be even better to only have one pack with my school and ski stuff but I don't really think ski backs come that big. (my school doesn't let us carry backpacks so I would just take my books out, put the bag and whatever else is in it in the gear room and be good)

Thanks for the help in advance