Write an honest cover letter.
Start with a neat title page.
Consider your tone of voice.
Include a table of contents.
Give a brief overview with an executive summary.
Outline your proposal and solutions.
Make a detailed pricing list.
Summary. ...
Problem statement or needs assessment. ...
Proposed solution. ...
Benefits. ...
Costs and pricing. ...
Timeline. ...
Credentials and experience. ...
Testimonials or case studies.