UPC barcode?

This seems to be an extremely common question but I can’t seem to find a clear answer on it. I am creating a coloring book. Multiple copies of the same product, one listing that I’d like to sell on Amazon. I’m fulfilling the order and shipping it myself as well, no FBA.

Do I need the $30 GS1 GTIN or the $250 GS1 with yearly membership?

Also, will they just create the barcode and send it to me in a file? Which I can then upload and incorporate into the design of the book before printing?