The 660's are becoming a bit pricey to chop up if in original condition.. There action is very little different in the main from a 700, although it is shorter. I would consider selling the 660 and buying a 700 for a donor. You will probably save money... which of course you'll probably spend on some other gun project, Amazing isn't it!! A used 700 BDL should bring in the $350-400 dollar range the 660 would probably bring about $100 more perhaps even more if you can hold it until May-June..