My specialty is working with pre-seed, tech-based B2B companies who are interested in becoming investable.
Working as an accelerator program director I have seen hundreds of investor pitches. I can tell you what needs to be in the pitch and how to clarify your message. I can also give good business model feedback based on your pitch.
I have spent the last 3 years running a top national accelerator program where I have developed a custom curriculum to make startups investable.
Working with me I'll be able to provide you: - Highly detailed path of what makes a startup investable - Coaching and education of all startup areas to consider - Pitch review and guidance to prepare for fundraising/selling
Short answer is approach it in this order depending on how far along you are: self-funded, friends & family, accelerators, angels, vc. Each will be subsequently harder to attract. Without knowing more, it is very difficult to provide a great answer here, but traction is key. Traction based on customers using your product and paying you to use your product.
Finally, when you say 'everything is done,' what do you mean by that? You are never truly done so my suggestion is to be much clearer in your status when communicating.
I hope that helps give you some initial thoughts, but again, I'd need a lot more information to provide a better answer.