On top of these files
Download http://files.minecraftforge.net/fmllibs/deobfuscation_data_1.5.2.zip
Download http://files.minecraftforge.net/fmllibs/asm-all-4.1.jar
Download http://files.minecraftforge.net/fmllibs/guava-14.0-rc3.jar
Download http://files.minecraftforge.net/fmllibs/argo-small-3.2.jar
You also need
http://files.minecraftforge.net/fmllibs/bcprov-jdk15on-148.jar.stash
http://files.minecraftforge.net/fmllibs/scala-library.jar.stash
When you download the stash files into the lib folder, just remove the ".stash" at the end and accept the extension change.
After that Issue #3 should be fixed, as that is what worked for me.