I have not read everything, got to page 6.
I have a thread of our girl, HeadHen, and doughy/kneady crop. We did the monistat(equate) twice a day for seven days--i squeezed about 1/4-1/2 inch on my finger, tucked her under my legs kneeling, opened her mouth and wiped it on the inside of her top beak (after the first day she refused the yogurt like she knew it was in there lol).
She does have a bra. And we did use NurtriDrench, Senokot (3 days), stool softener without laxative, coconut cooked scrambled eggs with more coconut oil on top. I cooked up the eggs, added the coconut oil, Nutridrench, Senokot, mixed it, set her on porch and she ate it all.
Day three and her water balloon crop went down to doughy, and she started eating, moving, pooping. Day 7 of eggs/coconut oil/monistat and she still had a pendulum crop but it was no longer doughy. After months of trying, she's closer to her old self.
We did get Acidified copper sulfate from jedds and plan on trying to give her that.
I hope your little one gets better!