Free: Contests & Raffles.
A good trigger is worth it's weight in gold. I cant stand the factory Remington triggers. However there new trigger "think it is the x model" seems to be a much nicer trigger then the normal.
Stocks are kinda user choice kinda deal. I have never had a bell and carlson stock fit me well. You might try to shoot one before you get one for your rifle to make sure you like it. I have always gone to HS stocks on my rifles. If you want to get real fancy I really like the manners and mcmillian stocks.