How soon are the goldfish and koi going into the pond? Hopefully soon, because IMO that 10g is about as overstocked as I've ever seen, even if the fish are all small-- no offense meant. Maybe you're stuck with this situation...?
Out of curiosity, why do you prefer cycling with fish?
In the meantime, if you're determined to pursue this course of action, the easiest thing to do would be rehome the danios, put the filter that you'd like to mature on the 10g goldfish/koi/pleco tank and leave it running for a week or two.
Then, buy whatever fish you'd like for the 10g and at the same time move the filter from the goldfish tank to the new tank.
This plan would have the added benefit of increasing the filtration for the goldfish/koi/pleco.
What fish are you planning to stock in the 10g? HTH~