Rod, I always find something that could be done better AFTER I send the boards out to fabrication!
Ted, I just picked parts out of the PCB package, I'd have to scout them out. I know they exist, because all the 3D models are of real parts. The one I did specifically look up was the 470uf capacitor, I was trying to do it with a 13mm part, but couldn't find one that was the right value.