I am lucky enough to get my hands on a Realistic TRC-86, the walkie talkie they used in the series. Not sure if it works but just to have as display is
ARE THESE THE NICEST SOUNDING WALKIE TALKIES EVER MADE? THE REALISTIC TRC-1006 - YouTube
Vintage 80s Walkie-Talkie Realistic TRC-214 by 3dtreatment | 3DOcean