Just thought I'd describe my anchor setup.
I hate using spools because of unravelling and the need to wind onto them. So I have appropriated one of my wife's green shopping bags. Stuffed the anchor line into it with the anchor sitting on the top. Place it in the rear well behind the battery box and rod holders.
Now if you look at the photo my last post in this thread, you can see that the yak has a carry handle at the rear, that makes a loop at the top of the stern. The folding anchor fits through this loop. When I setup, I pass the anchor through the loop and back into the bag (I can reach back to do this when on the water).
I also carry in the bag a plastic quoit. When I want to deploy the anchor, I drop it in and feed out the requisite length of rope. I then make a loop in the rope, pass it through the quoit then open the loop and pass it over the quoit, forming a simple knot. The quoit cannot pass through the loop formed by the carry handle so holds fast.
Raising the anchor is a matter of grabbing the quoit, stuffing it and the rope in the bag and flipping the anchor over the carry handle back into the bag. I untie the quoit first to make subsequent deployments easier.