this is definitely unique with the Country Time decals but the condition is very rough. maybe $100-$250 if those are shimano 105 components. it's good to see it's still getting miles put on it. you should just keep it and enjoy.
not interested in purchasing these but happy to offer valuation. This M300 might go for $200-$300 range given its condition but I wouldn't ask any more than $300. The SR500 is in the same ballpark, might be a little more desirable maybe ask $350.
you could possibly get $100 for this bike but it would probably take a while. I think $50-$75 is more realistic as a complete bike. I paid $80 for this bike which is the same model from a different year but I was interested in the color and the person who I purchased it from was very happy to...
I've seen 2002 posted for these. I don't think they were in the catalogs. They all seem to have their # our of 300 made on the rear chainstay. Beautiful bike! Post some pics after it gets a bath.