Haidden,
It rather depends on the variations in size and shape of the different parts and the proportions betweens them, the latter including the overall width/height.
Apart from that, there are a few peculiarities in the sample shown, at least concerning the arm hole, notably going from 2XL to 3XL.
Presumably everything is based on seams, and presumably you have different transformations for neckhole (front and back), armholes (left/right), shoulder slope (which may very well be undchanged), and total height (up to the neckhole) and width.
If that is the case, it can be done in much less than a very long time.