My brother-in-law just sold his 78 7-series. It had quite a few issues. He bought it off eBay sight unseen (with my warning not to purchase) and only had it a few months. Needless to say, I was right, the car was buffet of problems. To top it off, it was originally from Canada. Everything was in KLM....
Good luck with the sell Jim. It's good to see an early model bimmer finding good homes....