Much of that stuff (from the 2 albums) is now avaialable on Don't Say That I Ain't Your Man, Al Kooper's Columbia release. The great Carmelita Skiffle is on there - with its perfect soloing like a Bach cantata all the way through. Some is also on Nick's My Labors. I have a feeling I am repeating what others have said, especially bloomsdisco who is a true authority on the released and boot stuff extant.
Dave