I will gie you my opinion without trying to pfart too loud.
You won"t/can"t run out of oil with the double acting cylinders. Cus they have juice on both sides and when you run the ram one way the oil fron the getting shorter side is returned to the system.
My only small challenge with the install on the #35 was working all the air out of the cylinders which caused some foam while doing so.
give it a try.