i had a big piece of wood on a floor/trolley jack either side of my vitara, jacking the sills. i did this on both sides, and lifted the body evenly to prevent body studs from bending.
then, when i had enough room, i put 4 scissor jacks on the chassis rails to lift the body. 2 where the back tyres are, and the other two where the firewall is. i also kept the trolley jacks in place also.
watch for anything that might catch or pull out.