my cousin whose Nissan patrol we grew up with, he had the wide body on It earlier, the monstorous 1, 92-96 model, changed it to the miniature low roof version, so I asked him is it legal, he said he got it done from quetta, and he said government allows for a max of 6 years of extension on a body, I think that is the cycle of a model. after which it changes, now I don't know how far will interchanging the body go. but that was something different for me to hear, the 6 year part. he is a cop currently so I don't know how will it effect on his vehicle, we he served in the customs or fia in the past too, so you can say they know the law and its solutions.