I've been looking through the course directory (specifically the "real" courses) and have come across a few BETAS that never made it to the Final stage.
Some of these are simply Betas that haven't been taken down when the real course was released but, darn it, there are quite a few exceptions. With your permission (or without it it!
) I'm going to list them, oldest to newest (because I know that some of the newer ones have issues that have recently been addressed) I'm going to list them, oldest to youngest with the hope that the designer still has it "on file", then offer my "NP" services if desired (or not. 
)This might take a while, but it should be fun and hopefully rewarding.
).