I've been looking for a project to tinker with Node.js and it seems like I already have all the building blocks. The current working theory is:
To gather up all those bits.
Gut the weewarspy site as a hosting platform because it has a lot of the website side of stuff already despite being a bit out of date.
Knock up a little game server in Node.
Duct tape the whole thing together and watch it all fall to pieces on me.
It all seems doable, I need to think a bit more and start gathering all the files to review what state everything is in.