Just drop $50-100 on a used board and use the other $200 for lift tickets...just get out there.
My daughter and I learned on advanced freeride boards...didn't know any better....it was a very steep and punishing learning curve. However the payoff is that it forces you you to develop good skills rather quickly or go home. My recommendation is to get a twin stiffer? park board with mag and/or not with rocker...it will be a fairly versatile board for pnw...maybe like an atomic hatchet or banana.