Hey Fledge! Welcome to AW.
I have to agree with the others. Your best bet is to write this yourself. Most writers (myself included) are generally very wary of writing someone else's idea. Believe it or not, we get asked this quite often.
What are you looking for in this deal? To have a published novel? Most people who've ever asked me to write an idea for them said it was because they thought the idea was very marketable and would sell well. However, if you read around, you'll see how difficult it is to become published.
Most of us writers keep writing one book after the other, trying to improve over time. And maybe our tenth or sixth or fourth book manages to hook the interest of an agent. People do get their first books published, sometimes. It certainly happens. It's just not the norm. So unless you're in this for the long haul, it can be a waste of a writer's time to make this book for you.
But maybe you're justing looking for your story to be out there, to be written down? The problem with that is, it's hard to write a novel. You feel the drive for this story--but no one else does. It's your story. You're asking us to spend months, potentially years, on an idea we don't have a particular passion for. It would be better for you to write it yourself, because you are the only person who has the drive to make it happen.
I'm not trying to be discouraging. I'm just trying to explain why most people are probably going to say no, they don't want to write your novel for you. You could have an amazing idea but it's just very risky, and awkward, for us to do the work for you.
With all that said...there are a few options. You could have someone ghostwrite this for you. Basically you pay someone, a ghostwriter, to write the book for you. If it gets published, your name goes on the cover. You can claim the book as your own. However, it's expensive to pay a ghostwriter, and again, there's no guarantee of becoming published afterwards.
The second option is collaboration. This is when you find another writer to write the story WITH you---often, you'll each pick a character and write their side of the story, or you'll alternate chapters, one person writing a chapter and then the second person writing the second chapter. This works best if you find someone who writes with the same style as you and is also excited about your story. Also, writers are more willing to do this, because you both have equal rights to the story. If it's published, both names are on the cover. You would be giving up complete rights to your story.
So you have some options beside writing it yourself. Many of them are good options. If I were you, I would take a step back and think about your motivations for a second. Writing is definitely about the long haul--are you willing to commit the long haul to this story? Or is it simply a thing you'd like to see done, to have accomplished?
I know that can be intimidating to think about. There's really a lot involved in what you're asking, and I think it would help you to have a good understanding of what you want, so you can learn where to take this.
Truly the best of luck
