You can buy oem trigger gaurd from 40 bucks on up to new metal from 150 and many inbetween.
Around here a rem 600 is a high priced rifle. price can be found from 500 to 900 dollars . The 350mags seem to get the highest prices. I sure do like the 600 rem. You really need to have the bore scoped and over all quality looked at closely . It is a bit more practical to buy a model 7 new and go hunting. A new model 7 synthetic is $702 retail and probably closer to 600to 625 lgs and the 243 can be bought with a 18" barrel.