movable car stand

Well i was looking at the auto twiller website and they had a movable body cart they sell. It gave me an idea,and tell me if you think this will work.Im going to make saddles that bolt to where the front of the leaf spring hangars do.Theyll also be a sadde area for the frame to rest on.4 bolts in each saddle just like the hangars have.It will be a one piece saddle ,one for each side ,connected to the other by a box tubing.Then ill buy some good dolly wheels and weld those to the saddles.Ill have my tires mounted on the front of the vehicle.If it works Ill post a pic of the saddle.