Do you have a photo of the panelling? Is there anywhere else in the house featuring this material?

I agree it's a fantastic house I have a similar one with updated kitchen etc, Removing any swags and the painting done this is a more updated look. I'ts a shame that it's empty, how much would it cost to get someone to style a couple of rooms, kitchen dining lounge and take a few great photos for the purpose of selling, you could enlarge and frame some to hang on the wall so that you wouldn't have need to keep hiring furniture. Kitchen table chairs and a large choir rug, lounge with coffee table and a couple of lamps, no clutter would really help. Where do you live we could all come by and help!

I have not seen it done, however the product does say it is resistant to steam? Steam and being soaked in water can be different things to though... Like laminate - can be exposed to water, but not constantly wet as it will damage. It is a hard one. Have you asked in bunnings? I would suggest no, for the sake of care and maintenance. With tiles, you know you can clean it every week and it will be fine, with this there may be more involved, like ensuring the whole shower is dry before you finish each time. Best of luck

Most things are possible if you throw enough money at it. Don't expect the skylight installer to respect the existing layout of the the timber panels. I would suggest you first engage a design professional to carefully measure up your ceiling, and design exactly where and how the shaft will connect with the existing timber ceiling, probably at a large scale of 1:20 or more. Get your installer to quote on the documentation so no assumptions or shortcuts can be made. Without seeing your room I would consider lining the shaft with a similar timber to your ceiling with similar details rather than the standard white plasterboard shaft. I might also consider a victorian style glazed bezel at the bottom of the shaft. All it takes is engaging the right design professional, Best of luck, Dr Retro of Dr Retro House Calls