Finally after months of searching, I managed to find one on eBay that would ship to Spain.
The only trouble was it in a very poor condition. But it was cheap @ $50 and did include the screw
Jack. A little refresh and we are good to go.
Now I just need to find a wheel chock. I have seen them on eBay @ around $200 - $400 !
Anyone with one, in any condition at a sensible price let me know.