That's gonna be amazing!!! But as Chris said, your views may change.. so plan it out now, and buy it all later. Or at least just start with little things, like trinkets that don't cost too much, would add a nice touch to your room, but wont bring regret if you decide to change your mind later.
P.S. (What about a ship steering wheel? Saw one at The Christmas Tree Shop once. I wanted to buy it and add a stand to it so It could spin but I decided against it. Doesn't go with the decor of my room hehe. But it might work for you!

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