daftscotslass
Senior Guinea Pig
You could either by a cheapo table (like a wallpapering one) or make a base out of grids. However you'll need to use cable ties rather than connectors to put it together as the connectors aren't really safe enough (in my opinion) to hold together a higher cage. Oh, and if the cage was on the ground you wouldn't need to put any grids under the correx but you will if you raise it.