Hi,
According to the specs, you cannot increase the ram size. The maximum size is 8Gb.
Here is a link to show you where the SSD position is. The maximum capacity is 512Gb.
also in this link in the comments section there is a reference link on where to get a 512Gb SSD.
https://www.youtube.com/watch?v=jNRdNizgBeo
This link shows how to gain access to the SSD
https://www.youtube.com/watch?v=IpDOSZSRYrY
Here is the link to his blog post, showing pictures and performance data. Also comment about how it might be easier to upgrade by inserting a 128Gb SD Card.
http://mobtechwatch.blogspot.com.au/2013_06_01_archive.html
Hope this is of some help.