why can't the transmission cooling line be tapped to drain out the fluid? IPD has a kit( clear hose and spare clips) that you tie right to the lower cooling tube, start the engine, pump 2 qts into marked containers, turn off engine , add 2 qts fresh until the tube flows bright red. That is what i have done with my volvo and it takes 25-30minutes...no ramps and very little mess, if you are careful.