Thanks for all the help and advice guys it is much appreciated. In terms of how hard it shakes, it does scare my 14 year old son a bit when we are out together! I think swapping front and rear wheels is a great start and see where we go from there. I know that the rears are ok as I had the car on a rolling road last week and there were no indications of shaking at all.
Will hopefully get a weekend on the spanners this weekend to sus things out.
Thanks again
