zip ties!!! they are great to keep on hand for tons of things, but i have used hundreds of them since i got my ferts (1.5 years ago). you could zip tie the wire (just make sure the wire is tough enough to withstand their weight, you dont want it if it sag) to the cage but use lots if ties though.
then you can get carpet remnant & lay it or zip tie it to the floor, but for the bottom floor (you can use it for the top floor too) i would use linoleum.
good luck, any /'s let me know, you can pm me too. I have made cages before & remodeled them & attatched them to other cages etc...

did you get your fuzzie yet??? they are great pets!