Why would you want to destroy the value of a very collectible 1922 M2. These are selling in the $1200 plus range. Your clone would be a $500 rifle at best.
I wouldnt destroy a valuable M2. I would buy one already ruined ie. drilled and tapped and metal work refinished.
a few cheep ones pop up now and then that have been sporterized.
Still do research on what you buy. There are NRA Sporters out there. When you find one go to Jouster.com and ask Hershel if it is a Sporter or sporterized.
He is in the smallbore section.