You could lift the body off the chassis. 2 or 3 inch legs under each chassis mount to raise the body.
You could lift the rear axle with extended shakles, then wind the front suspention up, or cut the whole front suspention gear off of the chassis and mount it on a new lower chassis leg of your own making.
You could dump the sporti axles, and replace them with a pair of live axles fron a 4x4 of your choice, at a hight of your choice.
You could put the sporti body on to a compleate live axled rolling chassis (posibly shortened to fit) from a 4x4 of your choice, jacking up the suspention (and possibly a body lift) to the hight of your liking.