I recently acquired a metal hopper & legs #6 New Holland Mill. It's in decent shape and the only part it is missing is metal slide thing that closes off the grain flow from the hopper. I figured I could make that out of some sheet steel. I was wondering if anyone can tell me the shape of the end of it that is down in the mill and perhaps the thickness of material used. I wasn't sure if the end of it was cut flat or in a curve or angle or something. I haven't gotten a chance to try anything yet to see what might come in contact with it.