i just ordered 4 of the same meeki and 4 Amphilophus xiloaensis from Rapps...the meeki are from the same race. I can't wait to see what they look like. Won't get them till tomorrow.
I'd go ahead and put them in the larger tank personally. Like others have said, bigger body of water = faster growth. And actually I'd leave the danios in for now until the meeki and escondidos grow some more. Having a smaller school of fish around might reduce stress levels. Cichlids are very aware of their surroundings. If you put a bunch of juvenile fish in a large tank and there's nothing swimming out in the open they may fear a predator is around causing undue stress and hiding.