Hello
sorry just now answer. I will give you my opinion
The best countries to buy Eriba is the France and Netherlands or belgica.
because there are a greater number, have more maintenance and less money spent on buying.
In Portugal and Spain, when someone sells a Eriba, asks a lot of money, The eribas these countries are rare, only buys Eriba, who like the brand is much cheaper caravans.
I'm from Portugal and I will buy Netherlands, http://www.eriba-classics.nl/
To bring spent 600 euros and to legalize more than 400 €.
It took me over a year to buy my Eriba. If you need help, we are here.
Good luck