"I'm a seamstress* so I know how much time it takes to create an item"
How can one in all seriousness compare what a knitter does to a seamstress? I mean REALLY. Knitter/Seamstress both may design and make clothing but a Knitter not only designs and makes and adjusts a pattern/design to custom fit to a person's specific measurements but they also MAKE the "material" they need to work with.
So no, if "you" as a Seamstress, presume to know how long it would take to make an "item" for a Knitter, I beg to differ.
*italics added for emphasis