A lot of us point the 1st stage turret down and to the right a little and run the main 2nd stage reg off the end of the turret. I use a 40” hose routed under my arm and use a 70 degree swivel on the reg for comfort. A lot of divers use a 5’ or 7’ hose and wrap it under their right arm, across their chest, around the back of their head and in their mouth. The HP line coming off the other side is then pointed at the best angle to run the SPG down the left side so it can be clipped off on the left side waist D-ring. The back up 2nd stage comes off one of the side ports that’s aimed towards your right shoulder and the back up 2nd is on a 22” short hose and bungeed around your neck.
The bc inflator hose comes off whatever side port works to make a clean routing to your inflator hose, usually the port opposite of the back up second.