Replying to Ski advice

So I have been looking for new skis and I am really lost. I have a pretty tight budget so preferably anything on sale and under 300 dollars is what I am going to get, maybe 350 dollars maximum. I am 5'10" and 140 pounds, and I want a ski that is fairly light, or good for progression in the park, as I plan on advancing quite a bit. I would call myself an intermediate skier, intending to get better next year. I would like a ski that performs well on rails that is light enough to make rail tricks easy, but also holds up when hitting kickers. I also want a ski that is more durable, will survive the occasional backcountry skiing well. I live in michigan as well. If you can point me in the right direction, and find me a sick pair of planks to ski on next winter, I would appreciate it very much. +k for good advice, -k for hate. If there is anything else you want to know about me just ask.