SteemData is open and free to use, but unfortunately its not a HA setup (high-availability).

Are you making SteemData available as a public RPC endpoint also, because it seems from the article you plan to keep it private, at least for now (Why Private node?). If you do plan to make it public at some point, I'd love to add it to my list of "goto servers" as well. Regardless, it's another great addition that you bring to the community.

On a separate note regarding @gtg's endpoint, you left SSL as a question mark. However, I can attest that gtg.steem.house requires SSL / wss, despite the use of an alternate port (8090).