There were no introduction/preaching schedules for the sermons on Genesis.
1. Genesis 1:1-5 God's Creation, Christ the Light (Jeremy Jackson) 10-5-80
2. Genesis 1:6-2:3 Basic Principles of Creation (Al Gurley) 10-12-80
3. Genesis 2:4-25 (Doug Weeks) 10-19-80
4. Genesis 3 The Biography of Sin (Jeremy Jackson) 10-26-80
5. Genesis 3; John [passim]: The Tree of Life and the Gospel According to St. John (Jeremy Jackson) 11-2-80
6. Genesis 4 Spirit vs Flesh (Al Gurley) 11-9-80
7. Genesis 5:1-6:9 Reformation Sunday Pulpit Exchange (Jack Buskey) 11-16-80
8. Genesis 6:5-7:24 Noah and his World (Doug Weeks) 11-23-80
9. Genesis 8 The Flood and Redemption (Jeremy Jackson) 11-30-80
10. Genesis 9 Picture of Regeneration and Foretaste of New Covenant (Al Gurley) 12-7-80
11. Genesis 10:1-11:9 Can Babel be reversed? (Doug Weeks) 12-14-80
12. Genesis 11:9-32 Genesis, conclusion (Jim Pitcher) 12-21-80
For the missing sermons, I recommend the sermon collection at the Gospel Coalition website, which has high standards for what it includes. On chapters 5-6, I can personally recommend sermons by Dale Ralph Davis, Kent Hughes, Thabiti Anyabwile, and John Fesko, whose sermons I'm more familiar with. On chapter 11, G.I. Williamson and Iain Duguid stand out in my mind (and many of the ones listed cover the section that isn't missing here).
Rick Wellman preached on Genesis 4:1-8 in a sermon entitled Anger: the Story of Cain on 6-20-99. See the topical sermons here.
Doug Weeks preached on Genesis 3:1-8 in a sermon entitled God is Good on 9-3-00. See the same topical series just listed.
For more sermons, see here.