OK NOTE to self : next time look before i think
So toyota made a flaw in my thought they put a cross member in the way what were they thinking ? anyways it looks like i have room for a 12 x24x6 inch box i will have one wiped up this week . Also i am thinking just make a box with a flange around the edge and drop it in from the top again like a sink and then just have a lid made out of diamond plate or something . I can always cover it with a bed mat and you would not see it