I'm contemplating building a custom 10/22 just for fun and to see how accurate I can make it. I am likely going to start with a regular ruger 10/22 and build from there for as little money as I can manage (as part of the challenge). This will be a long term project. Any advice about finding the best prices for the basic rifle, as well as aftermarket parts (stock, bull barrel etc.) and which parts are the best would be appreciated.