Newton Standard 1916 parts sources

I've just acquired an incomplete Newton rifle in .256 Newton. What I got was a barreled receiver and a bolt body. I'm looking for the bolt innards, trigger(s) assembly, bottom metal and top tang. If a stock is available I would also be interested in that but I can make my own if need be.
If any of you have any idea of anyone having a golden hoard of Newton parts I'd sure like to hear about it. I'm already familiar with Gunparts (Numrich) and Jack First and Bob's and Wisner's. Any others lurking out there?

Thanks