Stand is same length as the tank, 48inches. Here is the pic of it:
Right now you can see my rubbermaid bin to the left of the tank with my sump in it.
Here is the inside. The middle support beams are causing some issues with width. There is only a 9inch clearance between them.
As far as money goes, I guess on how much you think its going to cost. Probably no more then $150/200 for maybe a 2-3 chamber custom made sump.