So the swapping of rims was a success, the black rims fit nice on the 34 but they do poke on the front.
Couldn't find the source of the rattle with the suspension, got the back seat with (with robs advice) and everything looked fine.
Removed the spare tyre etc and the noise was still there.
It 100% sounds as if the suspension is loose so I'll have to have a closer look on the weekend, I might grab your help with this Rob if it's okay?
Wish me luck with the inspection today