It looks like you have a '83 Sport SS frame, and that DiaCompe 500Q brake looks OEM. The Catalog says it came with shipmano 105 drive. it was 5 up rom the bottom so likely is a basic Sport or upper recreational model. If you have the parts on hand to build it it should be a nice rider.
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“One morning you wake up, the girl is gone, the bikes are gone, all that's left behind is a pair of old tires and a tube of tubular glue, all squeezed out"
Sugar "Kane" Kowalczyk