Unfortunately it was for a project that I don't own for a company that I don't work for anymore, but you could probably recreate it with the help of chatgpt. 

Heres a roadmap of what I remember if you want to try:

Set variables from network storage using token based auth Export Function 1: Ldifde export users with all properties Ldifde export groups with members Ldifde export groups without members Ldifde export ou structure Export Function 2: Command to backup gpos Command to backup sysvol folders Export Function 3:  Command to package all into a password enabled zip, set name date Wipe files aside from zip Export Function 4:  upload to network location Import Function 1: Read-host to set variables for formatting (new domain name or same as old) Read-host for password if disconnected from env, logic to detect if empty Command to unzip with password Command to format ldif files to be single line (some of the exports with break into multiple lines depending on length, they always start with a space so just remove the space and combine the lines) - all ldifs Command to replace domain name (dc=newdomain, or whatever needs replaced here) - all ldifs Remove any builtin users/groups from ldifs Import Function 2: Import ou ldif Import user ldif Import groups with user ldifs Import groups without users ldif (option) Restore gpos Populate sysvol folders Because they are functions, have some logic at the end to ask if you want and export or import and compile there, can also keep some manual variable setting here.

Note: this doesn't retain passwords or dns, passwords was a custom solution that I can't share anything about or provide a road map for recreating, simply due to being way too complex to recreate without source code and is extremely environment specific