The engine stand is very stable. That was my original concern, but when the doors are mounted you would have to lift it to have it tip over. I was very impressed how well the small stand worked. My original thoughts were I would be returning the small engine stand, but it works so well I...
The Engine stand is from Harbor freight and the door mounting is 1 -1/2 X 1-1/2 Angle steel from any hardware store and a can of black spray paint. Total Cost $75. The 750# engine stand is sturdy enough for the 4 doors. Simple and works well without taking all the wall space.