For the inner fender brace I'd contact Hemidenny on the board, he's got a few braces for the the shock tower that should work for your application. The other way would be a brace like XV makes, which just runs from the cowl to the shock tower. I have pictures somewhere, I'll see if I can find them. I have that style as well, but not installed yet. They're for my more stock appearing GT.
The tubular radiator support is still visible, in order for it to clear the radiator it has to hang down below the original. At least mine did. About half of the tube is visible below the original support.
The valve covers are Cal Custom pieces, or maybe a knock off of a Cal custom piece. I think I bought them off of one of the forums, can't remember anymore I've had them for a few years.