Well, sad news. An enthusiast passed by the location of Lee's Summit, MO's 8/12 port ACA Allertor 125, only to find that it has been removed. It's unknown as of now whether or not it's being completely replaced by another siren, or being refurbished or fixed. Either way, this currently leaves only a single active properly wired 8/12 port Allertor in Prague, Oklahoma, with the rest all being reverse wired. What a shame!
This information is from Landon Logsdon on the Siren Enthusiasts Facebook page.