Hey man here’s my opinion:
while the ARV 84 seems like a good option on paper, it is a kids ski. While you are a young 14, they are not meant to handle the abuse of a growing teenager. I would personally recommend the Tom Wallisch Pro in a 171. It’s a very middle of the road ski. It will hold up much better than the 84s because it’s an adult ski, and be way more comfortable to grow into. I held my old 171 chronics up to my friend (she’s 5’4) and they will be perfectly manageable. I skied 171 chronics until I was 5’8 and while they were short they weren’t debilitating. The Tom wallisch pro will get your through a season or two and help you find what direction you want to go with your skiing because they’re kind of a jack of all master of none ski. For bindings, I personally love look pivots, however as wonderful as they are they are expensive. Marker griffons or Tyrolia Attacks would be great options