Roy has asked a couple of times about where to get the wire brush I use on the braids, here it is: https://www.wassco.com/Products/Aluminum-Handle-Hand-Laced-Brush--003-Stainless--Gordon-Brush__GOR-11SSA.aspx
At $9.19, this is the cheapest I could find.
I'm up for a spare brush. Let me know if anybody else is interested, Wassco has a minimum order of $35 (would need to get 4 brushes).
