The two colorway thing already decided the number of plies for me (I love not having to plan what to do with a yarn once in a while!), so I just sat down and spun. I ended up with approximately 400 yards of two-ply fingering weight.
This is probably my most even two-ply yarn to date; keeping my singles even was something I was really focusing on while spinning this fiber.
I'm excited to see how this yarn knits up into socks -- eventually. First I've got to finish some very boring man socks.