I'll swing by your shop for an in person inspection of the M1. You will love it. Other than a few handling marks on the op rod charging handle, it is pristine.

It is easy to overthink wood finishing. Sanding a little is better than sanding a lot. Sanding by hand is better than using a power sander, especially on a rifle stock. Always sand with the grain, and when in doubt, use a finer grit paper.

The oil treatment is easy enough that I can figure it out, so I'm sure you would have no issue with it. Oil with boiled linseed oil until wet, let dry, oil again, and again, and again, and again. Finish the last two coats with tung oil, and go shooting.

8.0" .300 blackout barrel is on order, along with a few other parts so I can assemble my new SBR upper after my next stamp is approved.

Crappy picture, but from left to right are .223/5.56, 6.8 SPC, 7.62x39, and .300 Blackout.

The last cartridge is formed from a cut down .223 case. We made 1,000 for our initial set of brass. Here is what it sounds like, suppressed, using a friend's slide fire stock.

http://youtu.be/2mJ5i5sqNfI

They were supersonic rounds. Subs would have been much quieter.