deye, I probably could have bought one, but seeing I have the time and don't mind the DYI approach figured what the hell. Yours looks pretty good.
Doing the bend on one end, a few belts with the 4lb hammer and it turned out pretty good.
Next cab off the rank was cutting the excess from the opposite end, love those little skinny cutting blades for the angle grinder. After cutting to length, I bend a 90 angle on the other end for the mount base onto the bench.
Drilling a 1/4 inch hole for the mount hole
And here it is, the one on the left. My other powder measure is in a mount that I made around 25 years ago, it is made of steel. I will now have one set up for small weights of powder and one set for larger. All my presses and the powder measures are mounted with bolts through the bench top and fastened with wing nuts, makes it very easy if I want to move something at any time.
It was a little wobbly, so I knocked up a brace for the back out of some inch by 1/8th flat aluminium. Now its nice and stiff, very similar to the steel one.
One thing I forgot to mention, was after cutting the big hole, it was just a bit under sized for the measure to go into, so I got stuck into it with a round file and now the measure slips in nice and snugly.
My next little project is putting a 6 inch bench mounted under the bottom of the bench as it is a little high when I am working. I stuffed up when I first built the reloading bench a few years ago, I should have sat down in my chair and got the bench top height, but I just took a wild guess. No real drama, but after a while my shoulders get a bit cramped from holding my arms up.
As for adding extra bench get a taller seat or a drafts chair 
