Here's the way I set my 4 copper rigs up. 450' of braid, 10' of 40 pound mono, copper to fit, 30' 20 pound mono leader. I use an albright knot on all the connections. When I tie an algright knot, I tape the larger diameter line to my desk. This makes it much easier. (click on link to see knot)
The 10' of 40 pound mono is there to hook the board to. You could use 30, but 40 is what I had.