I'll throw down in the thread after going through a similar process 19 or so months ago. Similar to you I went from a 40 breeder to a 210 gallon tank. It was an upgrade so the 40's existing rock, some sand/substrate, fish, corals, basically everything, was moving once the 210 finished the cycle. So complete.
I used 150 LBS of dry rock, Pukani, in the fishless cycle. Started in Feb, finished cycle in March, left tank along with skimmer, lights, and return pumps for another 40 days before I moved the 40 into the 210. If I was to do it over again I would use TBS rock or cycle the dry rock in stock tanks because the rock takes a lot of time, and I mean a lot of time, to fully mature. Doesn't matter if you move rock over depending on the amount of dry it just needs time.
All in all I lost 4 large colonies of hammers, 2 rose bubble tip anemones (out of 11), 1 large Kenya tree (had others so not a huge deal) and my Xenia died off (has since come back). My experience when doing this is that the Pukani just need more time for the biological stuff to take hold.
I did not move any SPS over. Only LPS and Soft corals. I added SPS and clams at the 16 month marker though and they are doing well.