axis stock length

Hi all,
My stock synthetic stock is about 1 inch too short. I called Savage and got no help.
I'm looking to add another 1 inch Hard plastic spacer plate to the one that is already there. Or replace it with a 2 inch.
The molded form of this spacer would be hard to reproduce.
Has anyone tried this? Does anyone know where i can attain another spacer like the one on my stock?
Any help would be great, i would like to keep the stock ,but i need more length.
Thanks ,
Mike