Thanks Rowdy! "thumbsup"
Gary, here's a picture of the "mount"
Like all of my stuff, I make a template first (usually out of an old cereal box), bolt it up and make sure it will work, then start cutting.
BTW, while I had the washers off, I measured them.....OD=1.75" ID=1" Thickness=1/16"
Also, as I just reassembled these weights, I realized one last trick. If you use button head bolts to attach the mount like I did, you'll need a few washers (or a 1mm spacer) between the first washer and the mount at the lower bolts. If you feel like countersinking the upper mounting holes (I was too lazy :lol

, then you obviously wont need these washers. "thumbsup"