I am using ecryptfs for my home directory. I now want to switch to an SSD but my home dir is currently 350gb in size and I don't have the money to buy an ssd that size. What I got is a 128gb ssd that I want to install the root system on, as well as the "base" of my home directory (incl. source code, configuration files, i.e. the files used most often). All the subdirectories that contain lots of data but are rarely accessed (music, pictures, documents) I want to keep on a plain hdd and just link the directories in. However esp. for pictures and documents I really do want to keep encryption.
Is there an official / efficient / easy / secure way to soft-link directories from another location into my home directory and also being encrypted? Ideally ecryptfs would handle this automatically, however auto-mounting of these directories (preferably at least semi-automatically but definitely securely) would be an acceptable compromise.