RE: barrel option update
SHills - I would do the bluing or in my case browning to match up what I have now.
If I could find a 50 cal. in 1:36 or faster twist, with wood stock for $250, in good condition, particularly the barrel, I'd likely buy it. If an in-line, I'd prefer a break-action; if traditional, a percussion. I'm not afraid of a project and have considered making a stock from scratch, if I found a great barrel. A 1:36 Douglas barrel that lost it's stock would be a real temptation.
If you see something, holler, and thanks for offering.