Been taking a lot of big trees down and the bar noses are getting a little abused. There are like 3 36in bars that are out of commission just for a bar nose. They are stihl 25in and 36in bars. All either rollomatic ES or a light bar. To purchase a replacement nose from the dealer is like half the cost of a new bar before the sweat equity of replacing it. My question is are there aftermarket noses that fit on stihl bars, what are some quality affordable brands, and what are the best methods to replace them. Any special tools like a chain break and rivet spinner, or just a drill and hammer?