Well, as you all very well know, once you buy one BP it's hard to stop , so eventually buying cages gets quite spendy and you start to look into rack systems.

Well, I have a few questions about possibly making a rack.
An idea came to mind when I saw one of these in our house, and I thought, "Could that be turned into a rack?":



[The dimensions of the unit in that pic are 11Hx11Wx14L, I don't think that's even an appropriate size for a full-grown BP though? I compared it to the dimensions of a Boaphile rack and the Width and length are quite a bit smaller.]

The thing is, it doesn't have dividers/shelves like most racks. Which brings me to the biggest question, will flexwatt burn a Ball? If I were to stick a piece of flexwatt to the bottom of the containers, could a BP lean up and burn itself on it?
And if it wouldn't be a problem but the size of the unit would be I could look into bigger ones if the flexwatt could work?

Also, the flexwatt won't melt the plastic will it?

And if none of that would work, would a regular plastic bin work? That has lids and such? Such as this:



The measurements of that are 7Hx23Wx17D.

I think I asked everything that I had questions about, sorry for giving whoever reads this so much to read

Thanks in advanced to anybody who responds