FWIW, i have a 135 6' x 2'W x 18"H sps dominated tank.
at the time being i have a MAG12 as a return, split on 2 outlets.
and 9 PHs!!, i believe they are...
4 x hagen 802 PH
2 x hagen 402 PH
2 x hagen 301 PH
1 x hagen 201 PH
IMO the flow in my tank just doesnt cut it...
my problem is i have a "SHOW" colt coral smack dab in the middle of my tank. i am very reluctant to part with it, but at the same time i know i need more flow, i am trying to figure out how i can add a tunze 6080 to my set up, without flattening the colt.
your set up sounds good, for now.
down the road you'll need to add to it though.