You need to itemize your budget with breakdowns for advertising and promotions. Include any design, development for needed materials to facilitate the marketing. List the media outlets that will be used to execute your marketing plan and break out the online, social, e_mail marketing, e_brochures/e_catalogs, TV, print, radio, PR, tradeshows, sponsorships, philanthropic partnerships, direct_mail, telemarketing, and other outlets. I would also identify which components that will be completed in house and whether you will have an outside agency to help with your media buying and planning.
But, I don't specifically mean my own Marketing Plan S6PEC Framework because there are so many versions and gurus out there that can give you the benefit of marketing plan. Of course I am going to say mine is a lot better because it's a practical and practitioner's guide. Other than being a consultant, I also have performed marketing manager role, entrepreneur role, business manager role, investor and student of entrepreneurship (during my MBA!). But that's not my main point. My main point is for you to have a marketing plan to guide your business. Which one? Well it is up to you!