How about this way of generating a passphrase.
Second part: Your fingerprint
wut?
The second part of the passphrase will be... Your fingerprint?
Ignoring how complicated all your idea is...
What is a phrase fingerprint? xD
Passwords may not remember. But there are such functions when the password can be restored, and access with the help of a mesh of the eye or a fingerprint is very difficult to forge. So it's worth thinking about how to secure your documents and money other things.
that is not such a good idea.
the fingerprint system is not perfect yet and it has some problems, and reaching a truely random password with it will be hard (from what i have understood from what i have read).
also consider what if you burnt your fingers? what will you do them? all your money will be lost because you simply lost something that you could never "back-up"