I stopped and looked at a 78 cx500 last week by my parents house for the same reason project wise. It started right up, sounded good, needed cosmetic work but other than that it was overall nice. I passed on it due to wanted a 4 but if you’re interested in a 2 this wouldnt be bad to check out.
It’s in West Seneca on Orchard Park road near Country Peddlers shop. The guy selling it is pretty chill too. Hes asking 1200 OBO, i pretty much talked him down to 800 so im sure you could take it away for that.