It seems to be Teak, which is a quite expensive wood. Lots of Yachts and Boats are made of Teak and it is used widely on decks, so, I still dont understand what your question is? What you are saying, is that because of the electrical and AC Vent, you need to drop the ceiling? Do you have straight walls/ceiling? can the wood be attached to the existing ceiling? The Carpenter installing the wood, could just lower the AC Vent and what kind of electrical are you talking about? The ceiling can lights?

Well I'll try to make a 3d of the room and upload it. But that will take some time. Thank you :)

a much taller head board, something to soften up the cabinets. the bench at the end needs new fabric, and possible paint raise the bed with risers on the feet. warm neutral tones.

This is strange ! 'Rainforest Italy' you are a online furniture brand aren't you?