I'll be I mount my clutch lever in the spot you've got brake or just the opposite of your set up so I can use the clutch hold in button without thinking about it. I can pull in the clutch and apply brakes or leave the clutch alone and apply only the brake and I too believe in separate brakes levers one for front and one for the back. I found out don't use levers for the old pinch or side calliper style brakes on the new side mounts the geometry will make them work very poorly..
Norman