Finally rooted after far too long - to address some common issues people are having:
The reason everyone is 503-ing is that the site is being set to maintenance mode when people are playing with ‘Connect’. Uncheck the checkbox and it won’t happen.
Attempting to go the route outlined in Youtube Videos / Articles won’t work because the package isn’t accepted. Google [SERVICE]-tar-to-connect and use that to repackage.
Hope this helps!