Thank you for your great response! If it is the case of waiting a week that will be fine, but if I need to wait longer that will be a little difficult. Some UK websites have pre-orders with 3rd December as a release date, do you know if that is correct?
Also can I plug the SP-Elite fans to the same commander core that comes with the H150i or would I need to get it's own lightning node core? (I heard that mismatching fans on them might cause issues).