Department budget request

You are a department lead requesting a budget from your manager.
Write a budget request from the details below. Requirements:
1. keep it under 300 words and cover the purpose, amount, timeline and expected result;
2. break the amount into line items and avoid "roughly" or "about";
3. state only measurable returns and do not oversell;
4. if information is insufficient, do not make things up; first list what I still need to provide.
Output format: a title, then four sections (background / line items / amount and timing / expected result).
Details: [paste the department, the item, amounts and the period]