Here's my wishlist (or shopping list!) for this set:
What Can the Matter Be? You Never Give Me Your Money 'Til I Die 1969 demo (or any early versions for that matter, especially if the fabled version with 'positive' lyrics exists). I'm Going Your Way - just a nice, clean mixed and mastered version, please! My Solution - as above Won't You Tell Me Telephone Backgrounds (On a Clear Day)
...and any stuff Dennis was working on during this time frame, like It's a New Day and Behold the Night. I think everything else that was slated for his solo album came right after Surf's Up sessions wrapped so probably wouldn't belong here.