Ioncube 7 Decode

Hello,

I'am start a new Reversing Project

I a owner of a Ioncube 8 License, but, i will try to decompile/decode my crypted ioncube php files.

I found at Google a many tools that says 'yes we can decrypt' this for XX $ amount. Haha !

My Plan is, is have a PHP 5.3 Ioncube Decoder here, not for Ioncube 7.
The Decoder is simply easy...

A php.exe for Windows, and the Librarys.

And a Manipulated Ioncube loader dll.

Facts:

The Ioncube Files have a First Bit for identify the Version.
File Content is Base64 Encoded.

Okay, now, whats the best methods to Attack this?
Or have any Body more Informations about the Ioncube Loader?

Thanks