I found and bought this cowhide suede leather for my 1885. It's 60" without the flap, width starts at 3.5" and it ends at 8". Flap measures 5.5", and ties with leather thongs.
Heavy duty genuine suede leather cowhide
Reinforced sight areas
Flap closure. It was just $50!
Made in USA and the stitching and leather quality was outstanding!