I'm in the throes of getting one place ready to sell and simultaneously renovating the new place. There's no way I can concentrate enough to do anything other than make an occasional post, or possibly a book review, at the moment.
I have plans, however.
I'm designing my own writing room, a little haven where I'm surrounded by very comfortable, relaxing, nurturing, personal stuff with all I need to rest and dream and create right at hand. With a window overlooking my garden. The plan is to set up a routine where I have several hours a day devoted entirely to myself and that room, doing whatever I need to do to get the muse flowing. Not every day, of course. I'm certain there will be plenty of days were we just say 'Hey, fancy a trip out somewhere?' and disappear off until nightfall. But having a special hidey-hole that's for my own personal growth and creative development and a routine that helps me do all the things I really want to do without overloading me and that specifically gives me time to concentrate on my writing without feeling that I should be doing something else is, hopefully, going to let me finally do all those things I've dreamed of doing but not actually achieved yet. Mostly, get that book finished!
As to your list, my current thoughts are...
1. laptop - I can curl up with a laptop and my thoughts flow through my fingers to the screen much more freely and fluently that way. also easier to edit and share.
2. daytime - my sleep cycle is only just beginning to recover and I'm still chronically exhausted. I'm trying to get back into sleep-while-it's-dark-and-enjoy-the-daylight mode
3. time spent helping the muse flow, and allowing it to do so - by which I mean I'll give myself a set time to retreat and nurture myself with the aim of getting my head in the right place to write. if that means sleeping, so be it. or yoga, or playing the harp, or curled up with the laptop bashing ideas or chapters out. I'll just do whatever feels right at the time
4. offer it to one publisher I happen to like. if she's not interested I'll self publish
5. hiding in a room, no lock, no door. hate doors... I will, however, set a routine that involves time walking on the mountains, time nurturing my garden, time nurturing my home and my family.
6. no time-frame, just building a habit of devoting time to the project, and learning to see it as self-indulgent me-time
7. just go for it. I'm fine reading other people's ideas and opinions, but ultimately I'm wring my book and living my life. and I'm weird, and different, and only shine when I'm allowed to be myself.