Links to a few things mentioned in this episode:

Radios Across America - Dealer of used, commercial radios
Used Radios - Dealer of used, commercial radios

Below are the models mentioned in this episode. Just copy and paste into Google to start learning more about them:

Mobiles:
Kenwood: TK-860HG-1----(40 watts) FCC ID: ALH29383210

Kenwood: TK-8180H-K----(45 watts) FCC ID: K4437313210

Kenwood: TK-8180-K------(30 watts) FCC ID: K4437313110

Kenwood: TK-8150--------(45 watts) FCC ID: ALH32283110

Kenwood: NX-800H-K-----(45 watts) FCC ID: K44378702

Vertex: VX-4207-7-45------(45 watts) FCC ID: K6610354740

Vertex : VX-5500U----------(45 watts) FCC ID: K66VX-5500U

Vertex: VX-3200U----------(45 watts) FCC ID: K66-VX-3200U

Vertex: VX-2500U----------(25 watts) FCC ID: K66-VX-2500U

Portable:

TK-360G 8 Channel (Wide/Narrow)

TK-372G 32 Channel (Can direct software to write to radio as if it were a 128 channel version)

Alpha-Numeric Display (Wide/Narrow)

TK-370G 128 Channel Alpha-Numeric Display (Wide/Narrow)

Motorolas:
Maxtrac 300, Radius Sm50, SM120, M100, M120*, M130*, GM300*, M1225, CDM750, CDM1250, PM400, Spectra Low Power