You have really strong start.
I met our biggest beekeeper who has 3000 hives. When he started he knew nothing about bees. Near him there lived one of the leaging beekeeping developer in Finland and he went to work with him without fee. The teacher had 200 hives.
I got my knowledge from one of those leading beekeeper in Finland. He had worked in Canada and absorbed from America the style to nurse bees.
What I mean: find successful beekeeper and go to learn with him.
When I talked with our biggest beekeper, I told that I have not enough time to go through my 20 hives. Oh boy he said! They handled 450 hives today. They go through those 3000 hives in 10 days cycles.
First of all when you add your hives you need good stores, migration system and money to invest.