Finally had a chance to finish my custom Jeremy Bulloch / Boba Fett figure. Most everyone is going to (or already has done) this; so it's nothing new. I started with the legacy figure, removed the standard head (pictured on the far left), then bought two Jeremy Bulloch "Jeremoch Colton" figures.
I shaved the neck post down a little on the Fett figure so that the Colton head would sit down more proportionately. The Colton head is much larger than the one that came with the legacy figure.
I took off all the hair on one of the Colton figures, smoothed it down, and painted on the balaclava. I also shaved a small portion off the Jay Lenoesque chin. Now the helmet fits perfectly, it doesn't bulge in the visor, and the chin doesn't stick out.
Came out just how I wanted.
Now I can display the figure with the helmet on, helmet off with Bulloch and balaclava, or helmet off with Bulloch hair.
What do you think?
Figure with new Bulloch head.