Hello and greetings from the States! LOL.
Not sure LPM as the engineering brief is in #Merican units. Take a read though, this is directly off Rogue's website:
https://www.rogueengineering.com/ass...5_Sprocket.pdf
I can tell you the stock system uses a scavanger pump and a pressure pump. They run off the same single chain and are not suitable for a build like the one you posted, lol.
Any questions please let me know, happy to help anyway I can.
Rubin