Hey there! I'm currently working on a CLI tool to deploy WordPress apps to DigitalOcean. Check it out! It's free and open source.
If Draft, Pending, and Publish don’t suit your needs, you can always add more with register_post_status, which will take care of pretty much everything, except the admin UI where you actually have to pick a post status. Ticket #12706 takes care of that, so feel free to try out the existing patches, and report back to Trac.