Yep, I still remember drooling at all sorts of bikes in their shop in the blue collar neighborhood of West Milwaukee when I was in college.
The folks there were real nice down to earth people. I still remember when my brother and I would lace up new rims we bought from them, in a corner of their showroom floor to get a discount on a wheel build by them. They just basically charged us for truing them, even though we handed the wheels over still all loose and quite floppy. Rainbow Jersey, Wheel and Sprocket and Patio bike shop would have never let us do that........ That's why I have quite fond memories of that shop.
I would not be surprised if that Zeus was sold by Wares, considering that they had enough Italian framesets and some Motos for sale even in the 80's, but they were also quite heavy on Fujis, Zebrakenkos and Takaras by that time too. I believe It was the shop I first saw a stainless steel framed Submariner....and almost got a hernia trying to pick it up off the showroom floor.....