Need help finding a traditional muzzle loader barrel wrench, please guys.?

I need a barrel wrench for my Hawkens .54 caliber muzzle loader. or just the block, I had make do with vise grips and leather and a vise, but this would really help me out, or if you guys have any other idea of how to remove a barrel from the breech plus on a octagonal traditional muzzle loader barrel.