Wow sounds like you have been busy. We actually got two 55 gallons recently. One is a fry tank for me and the other is a cichlid tank for her. She is doing Malawi cichlids though. But keep your eyes peeled for a female Ice Blue cichlid.
I bought my angels at about 4 inches and they were fine when introduced at that size. Koi angels are very pretty angels but can also get pricey. If you see Altum angels anywhere those are absolutely AMAZING fish.
Glad to hear the fry are doing well. You should post some pics of your fish and tanks so we can see all of your new ones.
Reviews:
http://www.fishlore.com/fishforum/co...4-reviews.html
Cory