So my floor where i want to place my tank stand is quite wavy ,as in there are highs and lows . Which means the stand wouldnt be fully supported around the base. Which doesnt sound good to me. So . My idea is to place styrofoam down first. Like what people use under acrylic tanks. Then i would place plywood on top of that . And then the stand . So, first foam,then plywood , then stand. Does this sound safe? Only reason it would be difficult to shim is because where i would need to shim is to close to the wall.