Supplements inside the course or keep them separate?

I run a self-paced wellness course. Delivery already eats most of my week. My students keep asking me where to buy the supplements and food plans I mention in the lessons. Last month I tested selling a few things through DMs: three orders, more time coordinating dispatch than the margin was worth. I want to launch a second offer, but I keep going back and forth between putting a small shop inside the course community or keeping commerce separate. Port Harcourt delivery is the part I cannot do alone, so I need to know if community commerce is a real option or a distraction.