No my daughter and I came up with based on what we liked looking at pictures on sites. Since we are not planning on adding the Mandarin till very much later in the tanks life and we have a fuge up and running is the tank still too smal to have one? My daughter loves the color of that guy and would hate to have to omit him.
Having a mandarin with a producing refugium is marginally doable in your sized tank but that would mean no leopard wrasses.
Also the blue & green chromis at my LFS were brought in 8/12 according to the owner, and he admitted he is no longer bringing them in due to problems, since they have been around for so long (6 months) do you think there is still an isssue with getting those?
The health issue is (similar to or may be) uronema. However, chromis will still reduce their number to one or at most two because that is what they do. So, getting one is fine given the long duration at the LFS, but more than one would mean a reduction over time as they kill each other.