I bought my top loader electric kiln secondhand and it came with a stand that has always seemed a bit too small. Some of the bricks have started crumbling and while it’s working, i feel like it’s not happy on this stand. I’ve alwys had the stand on top of a paving slab and I’m wondering if I can get a few household bricks and use them and the slab instead of the stand? I’ve got some of the basic engineering bricks with holes in. Would this be okay? Using it in my house so I’m quite nervous