I'm in the market for my first chainsaw, and I want a good Stihl or Husqvarna. This is for my personal firewood needs mainly. I only burn about 3.5 cords per season, so I don't do much cutting. I'm basically looking for something inexpensive and durable that can take an 18" bar. My price limit is in the low $300s, but I would love to spend way less or get a decent used saw if it comes from a reputable seller. Any advice?