never heard of louisville cycle. either it's not around and/or it was in a part of town i wasn't in much.
i wasn't thinking any of the highlands stores would have much. they're all relatively new, i think. plus all i've ever seen in them are the regular road and mtn bikes. the place to go in the highlands used to be highland cycle. maybe one of them got some of their old stock. you'd think if you're going to find it, it would be the highlands, but maybe louisville's just behind on this.
but i just thought of maybe another thing to try. i've only met one other person with a rat-ish cruiser type bike, a trike actually. he works in the highlands at that hardware store i think around grinsted av. i only talked to him for a bit, but him being in the highlands he should know what there is to find.
ok one more, 'cause things are coming to me as i write. on a sunday morning, try the 7th street flea markets. there are two bettween taylor and algonquin parkway. part of why i'm not up on bike shops is i pick up most stuff here (or a few other flea markets, thrift stores and ebay), and go to bike shops for bit and piece stuff.