Replying to Best park skis to get

Hey my name is Reilly. I've been skiing for about 7 years and just got into the park a few months ago. I'm about 6'2, 170 lbs, and 15 years old. I'm a type III/level 8 skier and now Im looking for a new pair of twin tip park skis. Right now im skiing on some rossignol all mountain skis that are terrible in the park. I've done my research and talked to guys at my local* shop but I just wanted to ask the freeskiing community for help too. I'm willing to spend maybe $550 on just the skis no bindings. What length should I get the skis in? Whats the best brand in your opinion? Line? Armada? 4FRNT? APO? What type of ski is best for park, rocker or camber? And what are the best bindings? Also looking for something that will last a long time. I'm not a scrub in the park I just have these questions about new skis because I don't want to spend $500 and get the wrong skis or something. thanks.