Well. It's a good thing I decided to remake the brackets since I snapped one of the arms of the down tube bracket when flattening it out again. I bent the first set in and out of shape way to many times even though I knew a stress crack was inevitable. The new set's only been bent once and is a slightly smaller, better fit. I've also lined the inside with strips cut from a broken rim strip I found, and got a little fancy with the edges. Thanks again Mike for the tips, I think this set came out much better.
I've probably only ridden 10 -15 miles, but it hasn't budged an inch. I think I'm good to go.
Oh, I also painted it. The paint is in no way even remotely perfect but I like it well enough. The original paint was a bit uneven too.













And just wanted to throw this up here, thanks Southpaw for inspiring me on what to do with the empty shifter mount: