Book Cover Formatting Needed

I am seeking the expertise of Spacecoffeerb to format my book cover design. The design is already created, but I need it properly formatted to include the front cover, back cover, and spine. The book consists of 506 pages, so please consider this when determining the spine width.

Key Requirements:
- Format existing cover design for front, back, and spine
- Ensure dimensions are accurate for a 506-page book
- Provide a print-ready file suitable for publishing

Ideal Skills and Experience:
- Experience in book cover formatting and design
- Knowledge of print specifications and requirements
- Attention to detail to ensure precise formatting

Please let me know if you need any additional information or specific templates to proceed.