Brake lines suggestions?

[tt69camaro]

I'm installing new brake lines and wanted size and fitting suggestions. Also whether or not to use proportioning valves. I was thinking of 1/4" stainless hard line front and rear to "T's" and then flexable -4's to the calipers. Or maybe I should go with smaller 3/16" lines up front? What is the best set up for brakes on a Big rear tire/ skinny front tire car?