im making my own gecko rack and i find that the sterilite 16 qt tubs are quite pricey. the lids also wont be used, so they're a waste...i found dish pans in 18, 12, and 8 qts that have similar ground size to the 16 qt containers, the 8 qt dish pan is about the same ground size, but half the height, as long as the shelf above it is snug, could i use those? they are very affordable and dont come with lids. also, the shelf i want to use is only a foot deep, so im thinking of putting my heating on the left side instead of the back, or along the side wall? im also considering a heating cord instead of the tape because im hardware retarded...i dont know. help?