How do you do RDWC with no pumps? How do you circulate the nutes without a pump?
Im mostly still a noob too, but I have some experience and I read a LOT 
I just finished my first hydro grow/experiment.
I’m working on building a new system now which will probably be low pressure Aero/NFT mix of some sort.
As far as moving plants from one tent to the next, I dont think you want to change the system. I think it would shock the plants too much. From what I have read, the plants roots develop differently depending on the ratio of air to water in the hydro system and how much time the roots spend under water or in the air.
With a system like DWC or RDWC part of the roots are always under water and part are always out of the water. Going from DWC to an aero or ebb/flow would be a radical change and I think it would stress the roots.