So, I purchased a used gold crown ii for Christmas but the two bar and two bolt assembly needed to tighten corner blinds is missing. I can fabricate a new one but I have no clue as to the dimensions of the plate, distance between bolts or the size of the bolts. any help would be greatly appreciated. I can find oem ones for $20 apiece but I'm not spending $80+s&h for something I could make for $2.00. I just need dimensions.