Looks like a huge undertaking you're going for there! Should keep you busy haha! I'd say go for the decorative beams across the panel and as for carpet, I like #3 for the "luxurious space" and maybe #6 for the stairs as that will be most trodden along.
Good luck compadre :)
Muchos gracias mi amigo! That's all my Spanish, by the way.
Thanks for the input. I think we may have a winner emerging here.