If the rotors are good you will be okay. Those should be Kelsey-Hayes calipers. Last time I had to get some (heck, must have been 7-8 years ago) rebuilt calipers were pretty easy to get. Rotors were impossible from the parts stores. www.kennedyamerican.com
has rotors for $165 (Part #BR408). www.americanpartsdepot.com
has them for $149 (Part #988 0501B). A lot higher than I thought now! Both sell calipers for $30-35 with a $30 core charge. Parts stores should still be able to get those.