ISO: "Newer" Polaris or Ski-Doo 550cc to 600cc snowmobile. Would prefer a sled with a shorter track that is in good shape. Electric start and reverse a plus, but not a deal-breaker. Wanting a reliable sled for my teenager that won't break the bank. Looking to keep it under $3,800. Let me know what you have! I would be open to other brands as well if the price is right!