Just answered my own question. (What is this - Stack Overflow ???)
Anyway a pic on Reverb clearly shows a 1981 with a great view of the bottom of the body.
The Trap is affixed to the strap button with two additional holes to boot.
Installation, therefore, would constitute a virtually irreversible modification.
Other than that I reckon the stop piece pins would unscrew leaving metal studs in he body, eh?
I could screw in some wooden "dowels" or push in some plastic pieces of flair like...crazy daisies or the like.