Shop around for a couple classic Gates transcription turntables, buy out a lot of vinyl record libraries, promote your radio station as 100% music from vinyl. People will love it.
Had to look up transcription turntable. They were used for on air broadcasting back when radio stations played records on air with DJ in studio. High end fidelity and very durable.
Very expensive!!
Half or close to it on my playlist came from my vinyl records collection so I could say exaggerating that you hear original recordings from the original records the songs were recorded on.
You could spend a lot of money on a professional transcription turntable. But there are other options.
I've owned several turntables capable of playing Old Time Radio 16 inch discs (as well as music, of course). While not strictly professional, there were many older record players that were capable of playing these discs. Califone was one maker - they were big in schools, so the turntables were durable if not quite the quality of the high end ones. I also owned another, it's name escapes me, maybe Bogen. There are more. The Bogen was tube based, and did a good job as well.
I've donated some of my OTR transcription encodes to the Old Time Radio Researchers Library, and they sound quite good. I purchased several new needles, cranked up the players and dubbed the discs in wav format to an audio CD recorder. I then reencoded them to various bitrate mp3's for playback.
I paid less than C$100 for each of these, and while more expensive today, you can still find them at fairly inexpensive prices compared to the new ones. For a Part 15 station, they're ideal, as they don't break the bank.
Here are the turntables I have in mind.
Gates CB500 Transcription Turntables
The reason to have these is their commanding appearance, which requires providing a way listeners can see your setup, either by a still picture or a video cam.