Hello.

Everyone has seen them, the bulky pack sets by Motorola.
One stands out, the PX series.
What is inside is a Motorola MX series talkie and amplifier with power levels of up to 15 watts.
Some were converted to Smartnet by way of replacing the radio inside with an STX and the advanced HHCU.
Point being is that it is a very simple matter to remove the talkie and put in whatever you want, and they are cheap.
I would look for the PX-500 if given a choice.