Hello Dommech,
it is great that you share your plan. It sounds interesting, and Roman is right that it is a lot of work, but if you organize it well, and get used to manage it, I think you might have a great success!
I would only suggest you to mic in one account different assets not only one(as GBPJPY), even on different time frames.
Also, make sure to test longer your idea on Demo account. This will give you more confidence, and you will make it all clear for yourself.