Here's my two 400's which might encourage you to keep at it. But if you're learning bike mechanics from square zero, I'd have reasonable expectations and work incrementally rather than attempting to do a complete restore from scratch. It's easy to go crazy and end up with boxes of parts that never become a bicycle again. Don't worry much about cosmetics initially other than cleaning..... just get the bike mechanically sound. Work in stages - get one system (wheels, gears, cables, etc.) cleaned and working properly, then move on from there. Good luck.
