14" needles will be too short. A better way would be to get a circular needle and use it like flat needles. I think a 40" circ should do, a longer one would allow you to spread out the stitches so you can see your work better.
Cheating is an option. . . . Cheaters never win and winners never cheat, but smart knitters who want to retain an iota of sanity do, cheerfully. ~~Kory Stamper