So, I have an international 3000 series short bus. 25 ft bumper to bumper on a full sized chassis. I’m looking at water tank placement. I have the last 30 inches devoted to a storage “garage” and my bed in front of that. I’m looking at putting two 30 gallon fresh tanks inside, under the bed, and two more 30 gallons grey tanks under the bus. The easier place to put the grey tanks is on either side behind the wheels, and I’d like to put the fresh tanks behind the wheel wells, but could also place them on top of each other in between the wheel wells. My question is how much will having about 1300lbs (960lb water 130lb bed and a few hundred lbs of gear/shelves) hanging off the back end effect my ride? Should I try and orient the tanks as central as possible? I’d prefer to put fresh tanks further aft behind the wheel wells, but I could but them right over the axel, and I could maybe find grey tanks that fit between the frame rather than on either side. Thanks for input!