AO8... '78 - '79 methinks.
Condition appears to be very good and the bottom bracket and headset are not inexpensive items so consider those being worth $75.00 - $100.00
It is up to you to decide if the package is worth $200.00, I have sold completely upgraded bicycles like this for $350.00 - $400.00 and it will cost you a few more bills to complete the bike.