It's available now!
www.nexusmods.com
I should have bought Fallout 4 at 80% off when I had the chance

Fallout Vault 13 - Demo and Final Development Build
Fallout: Vault 13 was a total conversion mod for Fallout 4 that aimed to remake and reimagine Fallout 1 in Fallout 4's engine. This demo represents the final development build and features 'The Inyo,'

I should have bought Fallout 4 at 80% off when I had the chance