Thanks, you guys, that`s very helpful. So I have an alternative to reach Lombok from Bali, if not by flying or Perama.
However.. I did reach Lembar by ferry a few years back when the Perama boat broke down on the way to the gilis and it wasn`t nice. A herd of pushy touts tried to sell stuff to tourists, esp a totally overwhelmed japanese girl who sank under her seat and I tried to help her. Agressive atmosphere boiled up, but it luckily kept going on the verbal channel. Not the best experience, but I`ll keep this one as a flexible solution. Maybe this time will bring better memories :-)