GPO Utility that can compare GPO setting across multiple AD Forests

hello,

i've been tasked consolidating , standardizing gpos across multiple forests, approximately 72 forests, , need utility able review , compare gpo settings across of these forests settings may compared in order provide base set of gpo's created across of forests , create incremental gpos need unique settings each forest. i'm looking enterprise quality product searching internet has not yielded desired results. i've looked gpo compare , security compliance manager these cannot traverse multiple forests.

any feedback / insight appreciated.

thanks

gordon

to export gpos xml

powershell 

import-module

get-gporeport -all -reporttype xml -path c:\exportedgpos\report.xml

run in each domian

then use tool beyond compare or windiff compare xml files. 

Windows Server  >  Group Policy