Personally I don't find the '68 Super Kodiak all that great a shooter, but you are not going to find a more beautifyl bow whent he finish is clean. The phenolic Riser with Rosewood caps is gorgeous and well worth te title "heirloom".
I have one that I bought from Papa Bear himself. It replace my '64 Kodiak. The SK never shot as good as the '64 Kodiak.
As far as Bear hunting bows from '68, you have the Kodiak Hunter, Super Kodiak, Grizzly, Tigercat, Kodiak Magnum, Super Kodiak, and others. Finding a '68 model Bear bow won't be a problem. You jut gotta determine which is right for you. In my opinion, the '68 Kodiak Hutner is the only Kodiak Hunter I would have, and a better shooter than a Super K.
Just my thoughts.
Being from Michigan you would automatically think Bear Archery...however, ther e were several good bow brand from Michigan.