Sounds reasonable. I used Donk's Unlocker 1.1.0 for my VMware Workstation 8, so this will allow selection OS X up to version 10.7 - got it .
Unless you want to become a Mac Developer, you will have to go with 10.8, in Workstation 8 you will have to select 10.7, the option to install 10.8 was only introduced in Workstation 9 and Player 5.
Yes, this seems better than performing an upgrade.
If you intend to do a fresh install
But: Will I face any problems (maybe from Apple), if I use my OS X 10.6 VM and my existing Apple ID for purchasing OS X 10.8 in the App Store, then create an ISO file from that and do a fresh install of OS X 10.8 on "another" Mac (in my case, another VM) ?
Thank you very much for all your detailed explanations and your kind support. I really appreciate that.
If you are new to all this, I am sure we can guide you through the process, we have done it many times before.
This is my first time although I'm not totally new since I read several times about and - but now I like to practice