We'll attempt to build using RQ and the Django RQ module. RQ supports basic job queuing, as well as job dependencies and the ability to get job status.
Other than supporting the expected use-cases RQ have the advantage of utilizing Redis, rather than RabbitMQ. While more powerful and feature complete for queuing, protocol support topology, RabbitMQ have the disadvantage of being more difficult to manage and debug in failure scenarios. Redis is in contrast easier to manage and inspect in case of issues.

Basic proof-of-concept for queuing have been done of simple queues.
Remaining is the job dependency and job status. These are supported by RQ directly, but it's unclear if Django RQ supports these out of the box. If not we can simply fallback to standard RQ functionality.