I am needing to do the following functions with the avalibility of a single dc motor: evenly lift pair of cylinders with even loads,simultaneously, lift and gravity lower each cylinder independently while the other remains closed, gravity lower cylinders,both simultaneously and independently.

I was looking at a double gearpump,2 release valves and 2 check valves, when I needed to lift only one cylinder, I would activate the dc motor and the release valve of the opposite side, so the side I needed to remain closed would recirculate the fluid to the reservoir instead of lifting that cylinder, while the other gear would conintue to lift.

Does this sound like a viable option to get these functions? I'm having trouble finding a tandem gear that is 50/50 3.5-4.0mL/rev each side and is submergable without displacing too much of my avalible reservoir capacity (most have a huge junction box instead of specific piggyback spurpacks)

Are there flow divider circuits that would better suit me?

Keep in mind I am a complete novice!   thanks for your time and any input! Dudely