If none of the above options are possible, then you must apply to change your status from worker to visitor, shortly before your IEC expires. This will at least allow you to live in Canada longer until you reach legal common-law status, and can then apply for PR using INSIDE Canada method along with OWP.
Of course this means you need to stop working when IEC expires, and can only start working again when OWP is received (approx 3-4 months after submitting PR app).