External Server - XI3.0 - EP6.0 Intergation?

Requirement: We want to publish the KM News on a Internet site which is not on SAP WAS6.4

1. Will the Web Server <-> SAP XI3.0 <-> SAP EP6.0 Architecture work?...Ext Server-XI will connect through Adapter and XI-EP through proxy.

2. If yes, what should be the procedure to access the News from KM..Are there are KM API which can be used?

Thanks in advance