I find it interesting that the braces weren't pegged. As they work in compression, and in pairs, I guess you can get away without pegging, but it is certainly not common in the barns around here. The tie beam pegs being missing is a real mystery. Not much to hold the frame together without those. Good job on the pics, my interior barn shots always come out very dark.

My horse barn is a mix of hewn and vertically milled timbers. All of the scantlings and at least one of the posts was sawn on an up and down mill.

I agree that a hewer can match some timbers in cost, depending on the labor rate of the hewer. Over length and larger cross section timbers demand a higher bd/ft rate at the mill, especially the long stuff, requiring specialized equipment. Three years ago Jack mentioned the turning point was an 8x9 timber over a certain length, probably over 24'. Most mills get about $1.50 a foot for pine/hemlock in that dimension. That's a $216 timber.