Yep I have seen some of those You tube video's on hand feeding and some are down right scary. You attempt to power feed an eclectus baby and you will kill it! Watching and doing are two very different things.
No offense to any earlier posters but this is not the type of person I would even talk about tube feeding, god forbid she thinks she can try that with no experience.
I can just see the tube and food going straight into the lungs..shudder! Also microwaving food can result in disaster, it can create hot spots, you think it's the right temp but a section where you didn't test is blazing hot and burns a hole in the crop.
As for building your own brooder, I've seen DIY plans for those as well I have also heard horror stories of said brooders cooking the babies or malfunctioning in some other way that harms them.
There are MORE than 7 ingredients in just what mine get for their morning mash and it changes daily! Then the late afternoon organic fruits plus everything else they get too that we have already covered in different posts. Just because the previous owner fed them bananas and apples and they have had a few chicks does not mean it is a healthy LONG TERM diet. Greens, more greens, Quinoa and sprouted or cooked beans are in my opinion a must, but all that has been covered as well. You have picked and chosen what you want to hear from each post and continued to ask for advise.
Hand-feeding schedules...I'm not certain you understand temps of formula, consistency (which changes as they age) which side to feed them from, how to hold them and the feeding implement of choice, how to check if they are full, the need to let the crop empty (put new food on old food in the crop and you're in trouble!) sanitation. My concern's are endless frankly.
You have also asked repeatedly about if you should remove the male. I already said there is a good chance they had problems with the male trampling the eggs which is more than likely why they removed him but if you take away the male you put WAY more stress on the female as normally it's the males job to feed the female while she is sitting. That's a big job for the male as well since in the wild there are sometimes as many as 7 males feeding one female. In captivity it's one male. Remove him and you will over the long haul stress out and burn out your girl.
At the end of the day the truth is this whole conversation feels like beating my head against a wall so I am done with it. A certain Forrest Gump line comes to mind.
Now your going to attempt breeding Eclectus!!
