Just awhile back I saw a Uniden PC68xl at a Petro truck stop for $80. Very nice radio for the price. I own an older PC68 and I've gotten complements on how good it sounds. I believe some of the best sounding stock microphones, are the silver faced bearcats. That's what this radio has. Here's an eBay link to show you what one looks like. Uniden Bearcat PC 68XL 40 Channel CB Radio | eBay
I frequently buy non-working radios at theswap meet, most actually work, sometimes I replace finals, and a few caps. Theres quite a few people that come to me to buy touched up radios. Tuned up to 2 watts dead 5 or 6 watts with audio. I don't push radios that I sell, and I only sell to people I know, generally. Used radios I have had the luck that most of them work fine, 4 watts normally nothing special. But at a minimum its a gamble. If I change mic's I never put amplified mics, I like noise cancelling mics, and tune the audio circuit a bit.
