I am not sure, i think the infinity edge on each system will need its own pump. Is your pool very similar ?
I have a elevated spa that has a vanishing edge that looks like its flowing into the pool. I have a surge tank on both systems since I have a perimeter gutter on the pool and the vanishing edge on the spa I also separated them because I wanted to keep the spa temp higher. I am running two filter pumps and one jet pump.