Just read through the thread. Very nice, I always wanted an aquarium that was naturally lit. I almost bought an aquarium with your exact specs, deal fell through because I couldn't get the aquarium past the front door.
You were asking for suggestion of fish.
Maybe a group of anthias like sunburst
More butterflies like pyramid
flameback angel
moorish idol
I am sorry to hear about your wife. I can tell she is a very loving and supportive wife. I am sure you didn't want to continue this project after the bad news. It was her strength and the support of each other is how you two pulled through and it shows by looking at the aquarium. The time and effort is incredible for an aquarium that size. I know if that was me, there is no way I can accomplish something like that without the full support of my wife.
great thread I am too sorry to hear your wife isnt feeling good.