I've added M14 Re-conditioned Butt Plate and Assemblies to the sparrowhawkm14.com website.

Pricing is about the best I've seen around.

There are three different options:

Standard butt plate assembly without swivel or screws $15
Standard butt plate assemblies with swivel and screws for wood stocks $20
KMT marked butt plate assemblies including swivel and screws for wood stocks $30
shipping is an additional $8 and tax is collected for NY

Please check it out!