I can't be sure I didn't just miss GURPS MILTON ONTARIO, and GURPS DEBAUCHERY.

I would write GURPS DEBAUCHERY. I have the experience.

I need to check and see if I have copies of "GURPS Thin Thighs in 30 Days", "GURPS GURPS", and GURPS Steve Jackson"

GURPS ONTARIO was a Humble Bundle a while back