It would actually be better if you could comment on your other post and add the photo to your comment. That way we can all see where you started and where you ended up!

Check with the vendor in the "Shop" who would be handling the shipping.

A nice whitewash wall/paint treatment would brighten it up if done in a light color. Or I would paint it but not sure if all the knots will bleed through? If so then I would use an oil base Kilz to stop bleed through and paint it depending on the interior design I want for each room. I would not paint the ceiling for a more Montana look,

Hello, You will probably need to contact your local council. It is possible to pay or club in with neighbours to go underground but it is expensive to do so. I imagine it is a bit different in each area of NZ depending on the lines companies and council policies. Hope that helps-