I saw a 7 kit at a show and the guy had used that really thin ribbed rubber that you see in the load spaces of estate cars
http://www.par-group.co.uk/UserImage...er_matting.jpg
It was on the gear tunnel and glued to all the side panels . He had all the flutes going the same way and I thought that it was a neat weather proof solution. He capped the top of the tunnel edges with 10mm very thin ali angle and polished it along with the ali gaitor hold downs for the gearchange/handbrake. Cheap but very smart imho.
Bob