Installation questions - How and what to install

Hi there,
I have a question regarding the installation of Sonar.
I own version 8, 8.5, X1 (exp.) and X2. Now I recently got a new pc (64bit) with an SSD.
What I want is to only have one version, X2, installed, but all the plugins, presets, templates
and content from all four versions. It's just very unclear on how to do this best and what the
differences are.
Like the pantheon reverb and Session Drummer 2, I know I can install these via the 8(.5) setups,
but are there other things I could get from these versions that don't come with X1 ir X2?
Also I hear the loops and one shots are different with X1 and X2, but also I heard that the main
aned maybe only difference is that the X2 lib contains the content from Beatscape in addition to
the regular L&OS. Is this true, or is there other extra content in the X2 librarie and is it
recomendable to have beatscape installed and if so, with library or just use the content from
the L&OS folder?
So in short, how can I get everything content wise from all the versions and have just X2 installed
and no duplicate or redundant files (saving precious SSD space)? AlsoI'd like to know if it is usefull
to install everything. With this I'm mainly talking about the plugins that are unchecked standard on
install. These plugs are 32bit, can they still be installed and used on my 64 bit system ?
Next to all this I was also wondering on how, once all is installed, to set the folder locations in X2.
I'm using my 256GB ssd for OS, software and libraries and my seagate 1TB hdd for tracking. Are there
any folder locations I might change to ensure best performance and littlest waste of SSD space ?
Thanks in advance for anyone being able to shed some light on this as I'm really anxious to start installing,
but don't want to start right away as I want it to be an as complete, clean and stable install possible.
I hope someone here can help me on my way and a great day to you all,
Paul