I think that's the guide everyone was waiting for. Alpha01 (aka Altemirabelle) just published step by step instructions about installing macOS Mojave using (....drums....) Windows, without requirement of having a copy from macOS app store. Only stuff you need is:
- working internet connection (wifi cards compatible with macOS recovery or simply ethernet cable)
- pc with Windows installed on it
- cVad's Boot Disk Utility (http://cvad-mac.narod.ru/index/bootdiskutility_exe/0-5)
- USB 2.0 pendrive, at least 8 GB (USB 3.0 works, but may cause issues)
And well.. that's it.. All needed details are here in the guide.. It's in polish so you may use translator.
