11 1/2" x 12 1/2" x 28" is what I'm trying to go with now... It's single layer corregated and I think I want to put an extra layer of cardboard on the bottom to help support the weight....
I think he was looking for correct fender hardware. Did that get in there? If not, I think I have some...mine is correct for 75. Should be same. 5/16 dog points and u-nuts