So a hippo, yellow, foxface, and an achilies or sailfin would be alright? I guess to start with I honestly don't know the difference of genus in tangs...
I guess you never really know with anything, and there are always exceptions to the rule. I think it would be possible to add them all around the same time. I plan on stocking it full from the begining (after the tank is ready of course) but it's one of those things I don't intend on changing, unless I have a real problem! That's a handy tip on the lights out, hopefully I won't have to use it!
I like the lyretail anthis, I also feel like I could get a group of them, like 3 females, and 1 male. They seem similar to a lot of the wrasse I've been looking at. I could probably stock the tank with wrasse alone, they are generally peacefull, colorful, reef safe, and can be kept in groups. At least based of the research that I have done.
A heniochus was on the list, but the other ones I mentioned above were my top. I know the achilles is a little mor expensive than the others, but I really like the darker color, and the bright fins.