Joop,
You might find used window awnings--they are small and easy to ship. But a Zip-Dee like awning for a
Sovereign is over 50 kilos and looooonnnnggg. Very costly to ship overseas.
Many members with short trailers like vintage awnings. You might consider that for your
Sovereign. I used my 3m x 3m vintage awning on my Sovereign last summer and it worked fine (and didn't look too strange). The "vintage" awning slips into the awning rail by hand and is supported on the outer edge by tent poles and ropes down to tent stakes. They look better than a roller type awning, but take a few more minutes to put up and take down.
The good thing is that a vintage awning is about 1/4 the cost of a roller awning.
Zep