I say it depends on how far you want to take it and how much you want to spend... If I was to do it again I wouldn't buy a 10/22 and customize it, I would have built it from scratch because I sold 90% of my original parts. Me personally if I was to buy one, it would be the cheapest 10/22 you can find. Barrel clamp is only important if your using the stock barrel and original stock. Most people change out the barrel to a bull barrel and no longer require the clamp and need to sand out the stock to fit it.