I think I'll just DIY it. I'm already making plans--- it'll be 55 in. tall, 18 in. depth, 40 in. long, and I'll have two "cubbies"--- one on the bottom for my 29, which'll be 30 in. tall, and one on the top for my 10 and 5, which'll be 25 in. tall. Then I can put my soon-to-have 2.5 on top of the whole thing. But if that doen't work out (some of it is up to my parents) then I could get a rack or stand from the internet.
I found some nice looking shelves at costco, they have 5 shelves that you can place at any height you want, they claim to hold 1500 pounds each, and they were only $50!!! I have two sets, one holds my 20 gal brackish and two 10 gal qt tanks, and the other holds my sump and ballast tank in my fish closet.
I have used shelves for a few 10's before... my recommendation is to leave more than a few inches between the top of the tank and the next shelf. Even with my removable lighting fixtures it got pretty tight with the space I had. (think of siphoning, you will want to be able to have room to raise the gravel vac up and down without hitting the shelf above). JMO