Gentlemen,
Thanks for the interest. Here are pictures of the left side:

and a comparison with my byf 38 large ring rifle which I bubba'd into a sporter.

I don't believe I've seen a safety like this one has either.

I worked up some loads today with the Hornady 170gr RN and Varget. Interestingly enough the starting load pretty much matches Remington's factory load. I found a box of Nosler Accubond bullets at a local shop, I imagine full tilt loads will be a bit punchy.
Thanks for the recommendation of the Remington bullets, I'll probably get some and use them as a general purpose load.