broken window and door handle..2000 dodge avenger?

when it was freezing outside i tried to open my car door and the handle snapped.. now i have to open that door by goin throught he passenger side and reaching accross to open it from inside then walk around... a month before the window stopped rolling up and down..its stuck a few inches open..doesnt make any noise at all just dosn open.. my questioni. would it b cheaper to take it to a shop to get that fixed or just get a new door from a junk yard and get that put on? are either of these things i can fix myself? thanks for any help