The main thing that I would recommend is that if you are not extremely dedicated (and only you can honestly determine that) about taking apart and cleaning your fluval, in the long run it is going to become a nutrient source, and ha you would be better off in the long run for sps coral health to instead go for a sump and overflow to allow for a larger water volume, a place for your heater, a place to stick your skimmer so you don't have to look at it, and a place to run things like carbon if you find you need to.
You didn't mention live rcok, maybe it is in another thread, but if you have an ample sulpply, then that is going to take care of your
biological filtration just fine, making the fluval both redundant, and a potential hazard depending on your husbandry techniques.
hope that helped, let us know if you have any more specific questions.
Looking forward to seeing those new aquisitions!