This modpack is hidden and will not show up in the modpack index.
Great, Wizard's Ascension is up now, it's only got a few mods as of now but yet is still fun to play around in. Just search for it in your launcher to get it
Mage's Supply as you already know is dead. However, there is another modpack in the making called Wizard's Ascension. Just wait a bit for that to come out, and don't worry, I'll post another update to show when it's released.