I'll tell you what I did. I went to Home Depot picked up (5) 2x12x8 boards, squeeze tube of liquid nails,a box of 3" wood screws and 2 handles and built my own. They are 5 levels high 6',5',4',3',2' and put the handle on the end so I can drag them around the garage. This gives them a very gradual incline for lowered stangs and still gets you almost 10" off the ground! Granted they weigh a little more than 10 lbs, they only cost me $50!!!!
Scott