I only just had the idea that it might be nifty to have the Bible in Maltese as well, so I had a look at the trusty Malta Online Bookshop. They had one, and even a Koran in Maltese (which would be très nifty as well), but unfortunately the cost, even before shipping, is pretty high, and shipping is a whopper. (It might have worked out, kinda, if I had ordered them along with the other books, since it seems that the first kilogram is the most expensive, i.e. the price doesn't go up as much from 4 to 5 kg as from 1 to 2 kg, etc.)
Ah well, another day.
Also, a brief look at bahai.de didn't show a way to purchase the Kitab-i-Aqdas or Kitab-i-Iqán, which I had considered as well. (And they were sold out at Amazon.de and wouldn't be getting any more in.)