Where did u get your backlit friendly keyboard cover/skin? Could you provide any link perhaps? when you said you are planning to get a new SSD to replace the original, will this means that you will also need to buy new windows??
as if not, how do you install the windows in the new SSD that you are getting?
I ordered it on Ebay - Buy 1 Get 1 even. However there is a 3 to 4 week shipping time (from China/HK). Just search for Sony Vaio 17 Inch Keyboard Skin.. there are manymany choices -- I picked one that was featurd on You TUbe and is supposedly for BackLit Keyboards.
You do not need to buy new WIndows if you switch to an SSD. You should really do as 1st step create your Laptops Recovery Disks (a backup of the factory installed OS). You need 3 DL DVDs or 6 Single layer ones or at least a 32GB USB Stick. It is in the Sony Vaio Care application. Be sure to update Sony Vao Care first before you create your OS Image(s).
Then once you have your SSD - simply "reinstall" from DVD or USB -- dpeending on where you backed up yourFactory OS. No need to reenter licenses, etc...