NAV 2015 Web Services integration using NAS (and Azure?)

ottobe

I am about to start creating an integration with an external application using Web Services (or send POST xml files). NAV will need to consume and expose quite a few WS's. The integration is supposed to be automatic and I plan to use a NAS service for this.
I am in no way an expert on WS although I have made a few, using both .NET proxy class and winHTTPservices. Also, I have read posts from Gunnar, Freddy and Vieko which seems to be the gurus on this matter.
So I need some advice.

First I planned to use XML ports to solve this as described by e.g. Gunnar, but then I realized that NAS do not allow Automation/COM. Is this correct?
Then .NET proxies might be the solution. But the NAV solution might be used i Azure. I have no experience with Azure so I wonder if .NET proxies can be of a problem then. Anybody knows?
And is Azure and NAS a good solution?

Or might there be other solutions?
I am not so familiar with .NET web/XML libraries. Do they have equivalents to automation objects like xmlDOM and xmlHTTP?

ottobe

.NET System.Net.HttpWebRequest and System.Xml.XmlDocument does the trick.