Sharing my EFI won't make any difference, we have different parts, especially CPUs. There's a navigation tab for EFI folders, look for the appropriate one for you. How were you able to install Mac in the first place? You normally need to copy the EFI from the installation device to make it work without the installer, but other than that most tutorials/guides mentions the customization that needs to be done (getting kexts, configuring the SSDTs and etc.). Try checking out some tutorials in the forum.