THis is quite cheep if you want to try something risky and not risk your good :
vauxhall astra j 2011 to 2013 silver dashboard kit | West Derby | Gumtree

This would be good if you wanna join 'Rusty's caravan club':
[url=http://www.gumtree.com/p/cars-vans-motorbikes/vauxhall-astra-j-2010-to-present-new-shape-towsure-towbar-with-single-electrics/1054495094]Vauxhall As