For anyone intending to work with the Super8 films, for what it is worth, the leader has a LAD 35 sequence in it, on each reel from memory, so you could use that as a starting point for colour grading.
Similar to this:
Keep in mind that the above image isn't colour-accurate, I just pulled it off the web as an example, you will need to track down the correct values of the squares on the LAD 35 image from Kodak.