1. Yes, with the new version
2. It's simple to build the frames with planks. If you don't like to build them over and over again, just design them for you once and blueprint them.
3.would be nice
4.nice addition but can be done with planks, beams and logs quite easily + i believe you can find some blueprints here on the forum
5.with the new Version
6.can be built with planks and beams but some premade would be nice. Though i saw also some here on forum
7.i think it's planned though planks or posters work fine
8.you have a ventilator. If you blueprint it you can even rotate it as you wish
9.it's available but only via console command
10. Good one. Until it's possible use fire place or torches, sink them in the ground to see only their fire.
11.not sure what you mean. Build it with beams or logs. Even you can use some existing ones
In general planks and beams along with blueprints allow huge creative freedom