Skilled animator to simulate 'people' (dots) randomly walking around a retail store

I am looking for a animator that will take a floor plan of a retail space, and simulate a number of people (let's call it X) over a time period of (lets call it Y) and see where they move and flow too. For example, the shop has one entrance where everyone will walk into, and one exit. Over the period of 45 mins, we want to see how 1000 people would move through that space and if there would be any points of congestion. The animation needs to prove if we need to rethink the shop design. Alternatively we may give 4 different shop options to see the results of which would be the best. The animation needs to prove one thing, it is not required to be a perfectly rendered illustration. Lines and dots would be fine, providing it proves our outcome. Also looking for a price per animation/shop layout (hence my fixed budget amount)