Wanted: WANTED P14 or M1917 Sporter Parts for .416 Build

I’m building a .416 Rigby safari rifle on a P14 action, looking for the parts below.

-Cock-on-opening kit (Dayton Traister or other)
-M1917 extractor
-Speedlock spring
-Side-swing safety Model 70-style bolt shroud (it’s a long shot, but I gotta ask)

If you have other bits and pieces, or advice and tips, send me a PM!