[kjflyfish]

Hi, as far as the tracks go, a wood enclosed track will be perfect for the life of the gun, provided you don't bust the top out. A great compromise between wood and polymer tracks is to pour an epoxy section in the front 10 inches or so. After it cures, then cut the track. You will have a very durable front section (to prevent the shaft from ripping the top of the enclosed track up) and you won't have to worry about fitting and pinning a poly track.