Most people who have those leds love them. I am one of the very few who had trouble with them. :-( But if you go that route just make sure you get dimmable ones.
The power consumption adn lack of having to change bulbs are some real pluses as far as those leds. I have since switched back to t5's and realize i will be paying about $200 a year just for bulbs but I have also noticed my corals are doing so much better since going back to the t5's. I might even be able to save a red monti I thought for sure was gonna be a goner. lol
But yeah, 2 of those led
panels would allow you to keep just about anything you woudl want to keep.
As far as the sump and skimmer, the majority of people go intake section with skimmer, then refugium then return pump section. Thats how i had mine setup before I ditched the refugium. Never had any issues with pods
or any critters, had a ton in the refugium section that were able to make their way into the tank. Another consideration is you dont want a super amount of flow in the refugium section, you want the macro algae to be able to absorb the nutrients they are supposed to and a skimmer might add too much flow on top of the actual flow going through that section. Not to mention you dont want the skimmer to suck up any free floating macro algae or sand, it would clog the pump.
There isnt always a definitive way to do things, there are like they say a couple of ways to skin a cat. ( not that I would condone skinning a cat LOL)