51-hello again. Sorry, but I believe the later Nova (and clone) cars used the same subframe as the later Camaro (e.g. front-steer as opposed to the earlier rear-steer like you have). This topic was debated here awhile ago and this was one of the problems I mentioned-disc brakes
just weren't that common on the earlier style. 
While I still see quite a few of the older style Novas, Camaros, etc. in boneyards even here in the rustbelt, those rare disc brake spindles are the first thing to go! Another option for you to pursue would be to get friendly with the counter person at your local wrecking yard-many of these places have computer networking available for parts location. Drop by on a slow Wednesday afternoon, talk nice and you might just get lucky if they can locate the necessary spindles. Wish you the best of luck.
Regards,
Wannabe
