Organic growth of an Instagram account

We have an automobile/automotive related account on Instagram that we would like to build up a strong follower base. Looking for a partner that could grow the account organically (with 100% real people followers, not dummy accounts). The project could be broken down into milestones and payment awarded every time a milestone is reached. On top of that, we will have several KPIs that we will reward handsomely if achieved successfully. Place a bid on the project and we could discuss in further detail.