I saw an interesting post over on the spanish spacetourer site
regarding fitting vinyl flooring over the top of the traveller carpets:
I have now done the same and I am really pleased with the results. Much better than carpet with a young family.
If anyone is interested in doing the same I have a template you can re-use.
The flooring I used is the same stuff favoured by vw camper van converters: 1m off the roll 2m wide Altro CONTRAX flooring