First i would like to ask , what type of rifle do you want to build ? That would give a idea of who makes that type of kit . As for kits , Jim Chambers is more of a kit , that is all the correct parts are matched for the stock pat. "Kits" like Track of the Wolf and Pecatonica can be more mixed , or parts swaped. Most of the stocks in Track are from Pecatonica. You also can get a stock from other carvers and use what ever parts you would like . So the type of rifle will be helpfull.