Some progress this morning, no photos yet but not much to show in photos. Got the egg crate false bottom in more or less, just need to cut out a hole to insert the drain pipe once the silicone on that dries. (I used silicone to adhere eco earth to it to camouflage it.)

One snag I discovered was that the thermometer/hygrometer I got isn't going to work. I realized, looking again at the package, that it reads temp and humidity at the location of the device, but only temp at the location of the probe. So I'll return that one, but not sure what to get instead. I guess I'll go back over to Petsmart and see what I can find. I'm leery of the accuracy of these things but I guess it's not critical in this application....