Review and Update Business Plan and Marketing strategy

I currently have an existing business plan and marketing strategy, which are separate. This is for my start up children educational business where we sell products to promote healthy eating and lifestyles, as well as make educational songs and videos. I need the business plan and marketing strategy, combined, reviewed and updated to reflect the potential growth and what the next level of the business will need to look like. It will need to include suggestions for how the business can move from the start up status to expand with the possibility of taking on additional workforce, such as a business development and marketing manager, admin role, freelance social media management team, songs and video production team, marketing ect, to help a potential investor review the business potential. It will also need to include projections of growth for the next 3 years and how much investment will be required to expand the business.