Glue is dry and holding. After doing a test fit, I decided to go ahead and glue it on....before something goes wrong. As you can also see, I have more than enough room on top to install the fiber optics so I don't have to wait.
To glue it onto the head, I'm using the Jem-Tac I used before as I fear the Gorilla Glue might expand in undesirable ways.
Next will be adding the 2nd layers of Styrene. The trick here will be cutting out the panel details. Still working the thinking cap on that part.