Ed, I believe the ports you want to use are lined up with the fluid input ports and 90 degrees to them. The ones at a 45 degree angle are for the brake switch or switches. I think one of mine is plugged and I only have one switch.
With respect to the rear e brake tubes, mild steel is fine. You can bend it quite easily if you heat it to a warm red with a MAPP torch and bend very slowly along as you move the heat. Heat the inside of the curve more than the out. MAPP gets hotter than straight propane. I hope these pics help, I don't have a good one of my MC.
Fuel lines are on the bottom, then the clutch line, the ebrake tubes, then the brake T on top above the shifter cables. You can see the metal fuel lines going up the firewall with my backwards Ford filters(with nitrile condoms!). Like Carlos, I prefer minimal hose(German woven cloth) and I used the spring clamps. Not a single worm clamp in the fuel system.
I made a T from aluminum for the Ebrake and welded some 1/4-20 nuts to the tube on both ends. It works well, keeps it low and away from the seat.