I have a Savage hog hunter in .308 that I'm looking to upgrade to a LR rifle. I'm wanting to convert it to a removable magazine and upgrade the stock. If I buy a Bell and Carlson stock that is for a mag fed rifle and buy the stealth bottom metal from PTG, would I need anything else to do what I want to do? I should be able to buy both for around $400, any thoughts on other options?