Really, one could build the same thing and get same vintage look and functionality using a proper electronics box. By the way before 3dprinting a container a quick look at the Teko catalogue could be useful.
Being a transistor radio I suppose that it could be almost working and there are MW and LW transmitters. I am sure that most of old timers could repair it and probably have all the spare in the shack.
The Sims 4 currently features 39 radio stations, with an additional 10 stations exclusive to the DJ booth. 7 radio stations are included with the base game, with 9 stations being introduced to the game through patches. All other stations are introduced with expansion packs, game packs, and stuff packs. Patch 131 of the base game added a Mixed Music setting on stereos, which plays random songs from every radio station in the game.