I suggest you study each fish over at liveaquaria.com. That will tell you what each fish needs to eat, how big they get, and whether they will be reef compatible down the road.
As for the Begaii...I have just one in my 75 and he seems perfectly content. Not aggressive and doesn't stand for being bullied.
I got the One Spot Foxface as my largest fish. I chose the Flame Angel since it stays smaller. I got two Royal Grammas and they are doing well being friendly. I got one PJ Cardinal and it's honestly my least favorite fish...it sort of helicopters around off to the side of the tank. A single Red Firefish adds some interest and I got two Ocellaris Clowns. I also got a Sailfin Blennie which is very comical and entertaining and a Neon Cleaner Goby which is so small I have a hard time keeping an eye on him.
I'd steer clear of any Wrasse with "line" in the name...they can be buttheads. I chose the McCosker's Flasher Wrasse and he hasn't been shy at all very lovely and a good eater.
My tank was used and came with three Damsels. I gave the smallest one to the LFS
since it was about to be bullied to death by the other two. The biggest of these is the worst bully...I'm training him not to bother the others by showing him the net when I catch him chasing anyone. So far it's working but I'm going to hate trying to catch him if that doesn't work.
Hope this helps...oh yeah...if your fish are all young and small the order is less important. I was told to add the Angel last which I did and I haven't had any problems other than the jerky damsels that came with the tank.