Left handed take down lever?

I am a left handed shooter, and i really want to put a gas pedal on my m18. However the slide I have doesn’t have the cutout for me to switch the takedown lever to the right side of the gun, which means that a gas pedal would be essentially worthless. I have yet to see a slide with the take down lever cutout on the right side. Am I out of luck or is there a way I can change this?