change of plans! .... I decided to partially gut the aquarium stand and reinforce it with a 2x4 frame to fit a sump, I was able to get about 12 inches of width
I got the eshopps R-100 sump, since its 12 inches wide it fits perfect, went with the 800gph overflow and a RIO 3100 return pump, for now the aquarium is still cycling on the fluval 406 until I get time to get the sump running.
I have a 3 day business trip coming up, I will post pictures when I get back.
With the sump, is there any point in keeping the fluval canister, perhaps for additional mechanical filtration?