So how long before it is possible to 3D-print a brain-sized, person-specific artificial organ, composed primarily of brown adipose tissue, blood vessels, and "s

So how long before it is possible to 3D-print a brain-sized, person-specific artificial organ, composed primarily of brown adipose tissue, blood vessels, and "skin", connect it to the blood supply with sterile tubing, and refrigerate it in a portable plug-in cooler, to create a 6000 kcal/day energy deficit? Lose 100 pounds in 60 days without surgery. Some infection risk. Grid power required.