I decided to use RocketEngineer's tried and true template for my stand build. There is a massive thread on RC with info on it
http://reefcentral.com/forums/showthread.php?t=1169964
Since it was a 5 foot tank, I decided to go with 2x6s for the top frame. Height of the stand is 37.5". That should give me plenty of room underneath to fit skimmer and all other goodies that will be needed, as well as do maintenance when needed. At 1st my plan was to use 40G breeder for sump, however I got IceCap 36XL sump. Issue now was that tank width is 18" but sump is 24". I had to modify my plans, and came up with this in the end
I extended top and bottom frame to 24" so that sump can fit at the bottom, and added 2 off centered vertical supports. These are mostly for doors or however I decide to skin, and to be able to separate equipment from the sump. I still havent decided how that will all work out, so that is TBD for sure. I will leave back completely opened for air circulation, and will leave opening between 18-24 inches at the top open as well. It will give me lots of room for plumbing and other things that need to move between DT and sump. Sides will be skinned, so only opening that will be visible will be that one at the top. I caulked all the joints inside and outside with Alex Plus Acrylic Latex and primed it with 2 coats of Kilz Original. Plan is to start skinning it this weekend. Will post up as it progresses.