I scanned parts of the 1984 Miyata catalog and put them at the link below. The lightweights and the 1000 touring are incuded, along with some of the pages on materials and specs.
http://www-hsc.usc.edu/
One bike I did not include, but would LOVE to find sometime, is the Park-Avenue model (3 speed 'commuter' bicycle) ((shhhh.. dont let anyone know I've fallen off topic))
rich pinder
van nuys, CA