Leave a comment on the post and I'll DM you the join URL. Feel free to share it with a friend, but not post it publicly.
Current player limit is the default 4, but I may increase it if we actually get that many players joining at the same time.
Edit: Someone asked about a chat, so I created a steam group for the server, you should be able to join that here: https://steamcommunity.com/chat/invite/EblxtBh7
I've had thoughts along similar lines.
You can eventually get there building small, leaving the game to run and contribute to project assembly, but with a team, you can go BIG. DMd the deets!