[MENTION=493684]SurferRosa[/MENTION], it's hard to tell in the pic, but there are some threads available on the top of the fork, so the locknut is able to grab thankfully. It's about half what it should be, but it's enough to screw on. Hopefully it doesn't come loose as AJI125 noted. I guess if it does I can use some threadlocker.
JohnDThompson , that list of headsets and their heights is extremely useful! Thanks for posting that. I got the certificate warning too, but using http instead of https like you said eliminated it (pretty cool, just learned something).