I'm not a fan of the MJ mods - that's not to say I'm not a fan of the MJs. Good pumps, just look awe-full after modding and used to cost more than just buying a powerhead.
I like the Koralia Evolutions. They have been good to me and are pretty affordable.
You have quite the mix of corals when it comes to liking flow, so placement is going to e important. high means a lot of turbulent flow, not a direct blast 6" from the powerhead.
If I was you I would go with two 1050 or 1400GPH Koralia Evolutions about 5" down fromt eh top all the way in the corners on the back wall tipped towards the middle as much as possible.
just my 2cents worth.
low flow:
Acans,
Bubble Coral
Duncan (can be medium, look better in low)
Frogspawn (can be medium, look better in low)
Hammered Coral (can be medium, look better in low)
Pulsing Xenia (can be medium, look better in low)
high flow:
Acros
Todd's Torch (highly turbulent extends arms)
Medium:
Clams
Duncan (can be medium, look better in low)
Frogspawn (can be medium, look better in low)
Hammered Coral (can be medium, look better in low)
Pulsing Xenia (can be medium, look better in low)
varied:
Polyps
in my experience don't care:
Candy Cane
GSP
not sure:
Turbinaria...