How to install OS X 10.7 and 10.8 in VMWare Fusion, on a 10.9 host? I'm working on fairly new Mac Mini, running OS X 10.9.4 and VMWare Fusion Pro 6.0.4.

For software testing purposes, I want to install both a OS X 10.7 Lion and OS X 10.8 Mountain Lion inside a virtual machine. I have access to the developer downloads under http://developer.apple.com/downloads.  

I can find numerous packages saying, for example "OS X Lion 10.7.2 Build XXXXX", but all of them seem to updates and are relatively small in size (~ 700 MB). I can't seem to find any image that would allow me to install a fresh 10.7 or 10.8 inside a new VM.

So how exactly do I go about creating those two virtual machines on my OS X 10.9 host?
If you don't have them in your Purchases in the Mac App store, you can order Lion and Mountain Lion directly from Apple for USD $19.99 each.

http://store.apple.com/us/product/D6106Z/A/os-x-lion
http://store.apple.com/us/product/D6377Z/A/os-x-mountain-lion