Where to find repro SA boots?

[hungariancheesegoat583]

Hello I am looking for brown SA boots for my repro uniform, I've only seen one site that has them and the size that would probably fit me is out (wehrmacht.es) does anyone know of a good site? and can the SA wear black boots instead? (my uniform is 1933, so right shoulder board only, colour gau, collar tabs, collar piping)