Two questions on EP: Java Iviews or URL Iviews and KMC...

Hi,
we are planning to setup an EP, mainly to access R/3 and BW systems.
1 Q)
In order to select the right scenario for the inizial sizing I would like to clarify if the standard Iviews needed to access the R/3 and the BW system from the EP are to be considered Java Ivies or URL Iviews.
2Q) The KM at the moment is not foresee, but to avoid to require to install it later in case of need, I'm thinking to require his installation from the beginner, also if it will never be used.
My worry is to loose performances also if the KM is not customized or used.
I suspect that as the KM is installed, processes ad portal servces are activated, and they require CPU and Memory also if nobody is using it or no parametrization is done.
But on the KM documentation I'm not able to find out any advise for that.
Regards

Question 1 above was answered:  "No support for Java web applications under CF10's custom version of Tomcat"
Question 2:  No answer yet:  Is Apache Tomcat (NOT Adobe's customized version) supported for CF10 J2EE deployment?  I do not see any installation instructions on how to install CF10 on Apache Tomcat 6 or 7.
Is anybody using Apache Tomcat as their J2EE app servers and, again, NOT Adobe's customized/limited version? 
Thanks,
Scott

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