Did you add any new bio-load to the new tank? New fish, cuc, corals? If not, I wouldn't worry.
I have established every tank I have ever had with a couple pieces of rock from an established tank. I would have used all of the rocks and old media from the old tank, but I assume it is too late for that now.
You started off light with your established media, "1 rock, and a couple cups of matrix loaded water" you have quadrupled your volume and added very little of your established media. I would honestly equate that to a new startup. It will go faster than a bare bones start, but a "skip-start" this is not. I would advise caution.
The fact your test shows an above level ammonia level concerns me somewhat. It says to me that this tank can not absorb the waste it is being fed at the moment. In a couple days, your colonies will replicate to a level that will absorb it, but in the meantime do NOT add to the bio-load. Remove any dead snails or other decaying matter you see in your tank.
Feed very lightly in the next week or so. You need to allow your tank to "catch up" to what you had before. It will happen quickly, but you are not there yet.
Continue testing daily. When you see that ammonia remains at zero and nitrates start to build again, you will know you are cycled completely.