I went through all this about a year ago, on the NCOWS BB on The Frontier Spot, but, that is all lost in the crash of that site. I got lots of good information from NCOWS members.
What I ended up with is a pair of Civil War brogans that are plenty larger than needed with normal socks. Then I added the semi-custom foot support items I need inside, including some very thick wool socks. I also had thin, tough rubber soles added over the leather soles. I will have them added on the heels as soon as I get the heels worn down a bit, to nice comfortable contours. The thin rubber soles solved all my concerns about poor traction and marring of floors. I also used SnowSeal on the lower parts of the boots to provide a nice measure of resistance against moisture getting in.
I have been very satisfied with mine. I only use them for NCOWS and other shooting sports, so, they should last for a very long time.
Lars