I would be pleased to provide data from my WS.
Ad 1) Oregon scientific WMR 500
Ad 2) No, but data from my wheathr stations ar stored for 1 year at a cloud of Oregon.
Ad 3) WS doing it self, it is alll time connected to the internet. I am getting data thru an Application on my mobile devices.
Ad 4) No Idea :)
Ad 5) Yes
In case You are interested and you find the way please contact me.