Decided to try this with a size 17 needle to give it a little more body, I do have more yarn if I need to make it bigger!

CO 4 stitches onto size 17’s, knit to pattern. I have plenty of yarn, adding 2 more repeats of Part 2. On to Part 3….I counted back the stitches so the last cable lined up with the the cables from Part 2 (10 stitches from the end, 9 stitches in each cable repeat.). Looks really good! Purled 1 row, knit 1 row, purled 1 row then finished off with garter ridges. Had enough yarn to do 6 ridges; BO with a size 19 needle using a suspended BO.
This is really fun! Can’t wait to block it lightly and wear it; think I’ll make many more!