Can anyone tell me if the camera on the new P3 standard can be swapped out with the camera on a Vision 2 +.  As the new system does not use lightbridge I was hoping this would be possible and hopefully cheaper that replacing the Vision + camera which is way to expensive.

Good question....... Wouldn't be surprised if it is.

I don't think it is simply due to the fact it is basically the P3A camera with different internals and that camera as far as I know is not compatible with earlier phantoms

No its not possible..