The position of "Master" builder has yet to be taken in the CB world. That position will easily be held by the first person to start producing amplifiers using the same RF transistors in 12 volt ham radio equipment (Mitsubishi RD100HHF1). Everything else is hopelessly obsolete, using substandard knockoffs of the original Toshiba.
Looks like RF parts are selling those NOS. That's what the 2879's looked like a little while before they were never seen again. The legit ones anyway.
https://www.rfparts.com/rftransistors/transistor-rd/rd100hhf1.html