I was really thinking seriously about this body. Maybe setting up for some speed runs or something. So I started looking into it further and have learned it is designed to fit correctly with a front offset wheel for a rustler or stampede. Not a standard SCT offset wheel. So, if you want to run them on your rally, your going to need another set of wheels and tires or it will look funny.
Now I realize this isnt a big issue... but if your wanting to keep the underside of the rally stock and JUST ad the scalpel body it wont be right... the wheels will be too narrow. Again, there is no issue with using the body on the rally LCG chassis... just that it wont work with regular rally wheels/tires. Which is what id prefer to use.