On a new build I would be more concerned with the equipment needed and sizing it appropriately vs what I did on a previous build. That being said I would lean towards species my tank had success with in the past. I always like a heavy mix of zoas, mushrooms, ricordia as there are some super colorful types and they propagate well. LPS various acan gardens would be nice, some duncans, and a handfull of Euphillia. SPS both birdsnest and Monti have been extremely successful for me so I would lean toward those.
As far as fish. I like to keep a relatively small amount. I tend to lean toward fish that help clean the tank like tangs, and gobies. Above all else the easier things are the more likely you are to be successful. So, having fish naturally do the work is in my opinion a fantastic option.
Keep the CUC small. 15 hermits or so, roughly the same amount of snails, and a shrimp. I am a firm believer in a smaller CUC. I would rather feed less and maintain a small CUC then feed more and try to match the CUC to my feeding.