ANSWER:
Just for the reference, here are direct links to download latest supported version of Android SDK with Eclipse ADT plugin:
The links above were extracted from the older (Dec 2014) version of official dev site using Archive.org (you would need to click on VIEW ALL DOWNLOADS AND SIZES link to expand hidden content):
http://web.archive.org/web/20141202044627/http://developer.android.com/sdk/index.html#download
With a single download, the Eclipse ADT bundle includes everything you need to begin developing apps:
- Eclipse + ADT plugin
- Android SDK Tools
- Android Platform-tools
- A version of the Android platform
- A version of the Android system image for the emulator
.