Thanks for all the input; I've found something of value in all your comments.

I don't know what I'd replace it w/. I've considered a nice bolt action .22 (very useful), a bolt action .308 (good for accuracy, reloading, easy on the shoulder at the range) and I've considered buying a compound bow to get into bowhunting next season . ANY of these would be good and useful investments so I'm not short on those.

As for value, a gun store owner told me that on consignment at his store it probably wouldn't sell but if I put it in the "bargain hunter" I could get $500CDN (about $400US) cause people are actively looking for these old 742's or maybe just semi autos in general...I don't know. (A semi auto in 30/06 is a great brush gun if you need to get a second shot off quick provided it doesn't jam!)

I don't know if it's a lost cause. I've cleaned it out as best as I can so the only other option is to have it cleaned out and looked at by a local gunsmith for $50 minimum. If it needs work after that it just won't be cost effective.