Look into Hagen's CO2 system. Same as the DIY system, but not DIY

You'll need to hide the reactor behind plants, although it's not bad-looking. If you go with Flourish excel, that needs daily dosing, or a few times a week. A pressurized system would be overkill for a 10-gal.
As someone else mentioned, 5-6 wpg is way too much. I wouldn't go higher than 3, but no lower than 2. That way you have a decent choice of plants, you can try pretty much anything. With more light, it will be harder to control; faster growth, more fertilizers, possibly harder to fight algae if you don't keep up on the ferts.
It's pretty much impossible to find a ready-made hood for a 10-gal that comes with the right size PC bulbs. I've never heard of one. What I use is a 2 x 13W PC retrofit from ahsupply.com, built into a Hagen hood. Most 10-gallons use that. You can't get a 2-bulb NO strip for that size thank. If you go with a 20 gallon, you may have better options.
Low light is an option, but you will be VERY limited in your choice of plants, and growth will be very slow. You will need very little fertilizers, but CO2 would still help.
Go for a good substrate - most people would recommend Seachem's Flourite. One bag will be enough for a ~2 inch bed. It won't substitute for CO2 though. And get smallish, non-destructive fish.
Edit: what's the custom sealife reef hood you're talking about? If it uses PC bulbs, can you get them in a different colour temperature? From what I know, reefs need a lot of light, but in a different spectrum. So would it be possible to get the same hood, but with bulbs in the range of 4500-6000 K? Again, don't go for more than ~3OW though.