Since I luckily managed to get hold of a 2nd hand set of proper rear coilovers for my G40, I now have these surplus to requirements.
They are slide-over tubes to convert regular rear shocks into "coilovers" to accept whatever 2 1/4" springs you choose to fit. Then obviously you can adjust ride height to perfection.
They are totally brand new and unused, all I have ever done with them is unpack one to take the photo!
(http://derby.polog40.co.uk/photos/forsale/coilover_tubes.jpeg)
They were originally bought from Rally Design and you can see them in their webshop here:
http://www.rallydesign.co.uk/product_info.php?products_id=3458
As you can see, the total price including VAT would be £72.45 before you even factor in postage costs from R.D.
I am after £65 for a quick sale so basically you can save on VAT and also not have to pay postage if you are near north Manchester (evenings & weekends) or Huddersfield (during office hours).
In order to fit to a normal polo shock you need a spacer bush making to slide in the bottom so they are a tight fit on the shocker. Other than that, they just slide over.
can take these to Edition if required!