It looks like the full Mandriva 2005 Limited Edition tree is available via FTP install from the mirrors. Good news for some, bad news for the expert list that is going to be flooded by questions on how to burn the entire tree to a CD :)
Here is quick tip for everyone. From the mirror, under '/official/10.2/i586/install/images' grab 'boot.iso' and burn that image. Boot from that CD, select FTP install and point it at your mirror (ie: ftp://gd.tuwien.ac.at with /pub/linux/Mandrakelinux/devel/2005/i586 as the directory).