your almost there. Now get a small piece of bent wire or screwdriver and carefully
pull the moon roof material out of the slot where the vinyl bead came out towards the visor side of moon roof only.
Then with the overhead light removed the windshield side of the head liner just has velcro material holding it. Gently pry it down and the headliner should sag in the middle allowing you to get at the moonroof motor.

I tried pulling it out before, but it felt like it was going to rip the fabric.
I'll take another look and try it again.

Is it even worth me trying, I think I broke something up there since the green wheel is "floating" around now.

I your headliner fabric has any kind of age on it is is probably best to leave it alone as it will rip and fall apart.
My SSE fabric was only 2 years old and I new just what to do from when I put it in.