Co-writer for a fantasy visual novel, mostly dialogue. Creative writing.

I'm looking for a ghostwriter to co-write a visual novel. A large part of the project is already written. There is already a story and existing characters that you will need to be familiar with before you start writing more parts of their story. I have a budget, and tell me how many words I can get for the budget. Say delicious salmon in your proposal, so I know you actually read it and are not a bot. No strict deadline. Your writing style will also need to match closely to what is already written. The writing is 90% dialogue, and you will be given an outline of events to follow. Thank you