I think it will be hard to find Serenity to rent, but Iím sure you can buy one. If you canít find it in Italy, you can try other country. Podersdorf is far away from Venice but you can ask in Slovenia, same direction but much closer to Venice, 160km to border.
You can check out this link:
I now this dealer already sold at least one Serenity board in Slovenia, but probably more. Only problem is that Serenity is not in stock, after you order it you usually have to wait a long time until you get it.