We are preparing to setup a 32x16 intex agp. We’ve read and researched quite a bit, and we know without a doubt we need some concrete pavers to go under the legs. Several peoole have said that if the pavers are under 3” or 4” thick, they’ll crack under the weight of the pool. But I’m having trouble finding pavers with that thickness at my local stores. Where have y’all been able to purchase them?