Hell yeah! Finally got it done. This it how:
1. flashed an old recovery (the one that I've got my last backup from) but still got a bootloop with an old cm10.
2. installed the newest working wersion of CM just to put my backup into different directory and make it visible (make sure you copy both folders with a date of your backup AND blobs because without the latter one it won't restore giving you an error)
3. voila, you've got a fully restored system
Thanks Carlos_Manuel for your help