Looking for Pro Tools 7.0 dmg

I'm in need of an installation file (dmg) for Pro Tools HD 7.0 (Mac OS X version). I purchased a PT 7.0 HD license second hand, to use with an HD system I recently acquired, but it appears that AVID's website only provides downloads for versions 7.2 and up. If anyone has a copy of the file (or know where I can get one), I would be forever grateful.

Thanks,
Joe