How to get OSX Yosemite outside the Mac App Store

I have the following scenario.

• At work I run an Ubuntu PC machine with fast connection.
• At home I have a Mac without any kind of outside connection (offline)

My question is how do I get the OSX Yosemite offline installer to install it on my home Mac, obviously I can't access the Mac App Store in my Ubuntu machine at work. Is there any way that I can get a direct link for an offline installer ?

Note:

• In previous versions I get the ESD dmg file that contains everything that I need to install. But I can't find any kind of that link with Yosemite. All of the current ones redirects to the Mac App Store.
• I need the final version released yesterday, Betas or GM aren't an option

It's on usenet already & no doubt torrents [though I don't go there]
The Release build is 14A389

the release version of Yosemite is build 14A389—the last developer seed was build 14a388, also known as GMC3. The last public beta version was build 14A388b. That makes the MAS release newer than all other released builds

Up to you, of course, to decide whether you trust the source.

SHA1 hash for OSX 10.10 Yosemite public release? Has the SHA1 so you can check whichever version you get...

Extract... run this command in Terminal:

shasum /Applications/Install\ OS\ X\ Yosemite.app/Contents/SharedSupport/InstallESD.dmg

response should be

eebf02a20ac27665a966957eec6f5e6fe3228a19  /Applications/Install OS X Yosemite.app/Contents/SharedSupport/InstallESD.dmg