The E11 has a special place in my heart because it was one of my first EDC lights. A few friends carried them, too.
I upgraded to an E12 when it was released, and carried that until graduating to 18650-powered ZebraLights.
I still have a first-gen and a second-gen E11 that continue to work great. I’ve taped some colored gels to the front and now they’re loaners for young flashaholics.

Have you considered the E12? I’m curious about why you prefer the E11. I remember missing the forward-clicky of the E11 when I switched to the E12, but I liked the three-mode setup and the ability to tailstand.
I hope you find another E11, or better yet, that your misplaced one turns up. 
And welcome to BLF!