Head Shape Clinic question

Hi, i was wondering if anyone had some experience at any head shape clinics in Edmonton. My son was diagnosis with Asymmetrical Brachycephaley currently in physio for it. he is in the serve level and was told to get a helmet. is there any place that does payment plans for it. I can't cough up 4K up front and Alberta health doesn't cover it and my husband's health benefits doesn't cover any.