RR Sport Chassis question ?

Hey, can anyone tell me if there would be any mods required to mount a Disco 3 or 4 bodyshell onto a RR Sport chassis ? I know it’s a Disco chassis anyway but wondered if it was just a straight swap ?
Got a feeling there are some differences in suspension ....?
Andy help appreciated.. cheers

I think you'll find the basic chassis layout is much the same design. However as the wheelbase on the RRS is 5.5" shorter than the wheelbase of D3/4 (108.1" vs 113.6"), kida makes a straight swap difficult .

Ok thanks for that