What is the value of a western field 308 cal model 720B EHM?

I have looked just about every where with no results except for finding

a good comparison-The Heym Magnum Express.They are the same exact

rifle,except for trigger and caliber.The Magnum is listing for around $5750.00. I beleive that you have a mossberg model 800 which was made for Montgomery Wards(Western Field).this was chambered in .308 win.and had a 22in barrel,bolt action,checkered pistol grip stock.This was made in 1967 and discontinued in the year 1970.The current value of these rifles is between 150-275 dollars depending on overall condition and a good bore.