What is the most logical next event?

How to build a rabbit condo
Plan a design.
Purchase two boxes of wire storage cubes. Once you remove all of the wire mesh grids from the boxes of storage cubes, you'll know how many you have to use.
Each grid square will likely be 13 " x13 " or 14 " x14 " depending on the brand you buy. A common design may consist of front and back walls that are both three grids high and three grids long with the side walls being three grids high and two grids deep.