Hey kempy, this was talked about on the other forum a while back. Just use some pipe clips to mount your reel, still easily removable.
Also you don't need to make holes for roller guides, just place it near the door.
Personally I'd rather not be chopping holes in my van, though if I did I'd probably have a fuel filler cap fitted to hide the hole and to stop cold getting in.
Think someone here posted pics, susan I think, looked quality.