New Tank end of this year

I am planning on upgrading from my 46 bow to either a custom Deep Sea Aquatics 48x24x18 rimless (90 gallons) 1/2 inch glass so I will not need any bracing. I might make it 48x24x20 (100 gallons) I figure with a rimless I will keep the water level a little lower than my 46 bow. My 46 bow reef I have had for about 4 years. I will havethist reef ready with a sump. I have never had a sump so this will be new to me. I know I want to have my chaeto in their as a refugium. I will get a Mp-40 for it. I guess between the Mp-40 and the return from the sump this should be enough flow. I want to get the new AquaticLeft R76 fixture when it comes out in 2 weeks. It will be 2 150 DE MH bulbs with 4 HO 39 watt T5's. Will this be enough light? Please give me every ones opinions.
Thanks

 

If ur going to do sps i would go with the 2x250 watt mh, and the vorteh 40 should be ok im probaly going to put 2 40 on my 150 tank

 

+1 on the lights, maybe get one with 54W T5 also.