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Were the driver and final original. or....???

Not from what I have seen. Horrible construction, the cheapest parts possible and oscillates like a kazoo, when driven below recommended limits. Spurs-a-plenty. But, he says, his amps don't spur. Must be some kind of voodoo in here that makes his junk special.

The bias he uses is class B schottky diodes and resistors. Garbage amps.

His bias circuit is crap. Schottky clamping diode/resistors

They also made their own with their name on them, as well as early 70's Realistic. They were high quality.

6241 is Hitachi SSB

Carrier oscillator/clarifier from SSB Hitachi (maybe Sears), the connectors look very Hitachi to me. I have probably seen it before, but can't recall.

Power switch, AC/DC switch, fuses.

There are methods to measure what you need, such as load capacitance. You need to learn how. Maybe, your Chinese crystal house knows how and is equipped to perform this. Send them the test samples from a working radio.

I understand. You may need to pull the crystals from a working radio and test/measure.

Now, it sounds as if you are not looking for one crystal, which is how I interpreted your post.

Custom crystals are very expensive and limited to one vendor in the US. Their quality has been hit or miss for decades. If it was me, I would explore DDS VFO, not crystals.

I am in process of restoring one as well. I also had a bad speaker. I ordered 8 ohm 1 watt. If you look at the schematic, you can see the transformation, that I am going to workaround. I am also going to install an electret mic. Good luck with your project.

Are you here to try to get help with the issue, or just to vent?

No RX or TX audio?

2SC777 and 2SC775 come to mind

Turner Plus Three. Best amplified microphone ever made. End of story.

You don't have to have the box with the rotary switch. You can get one of the encoders that has a dip switch set it to the tone you want and forget it. Or, you can install inside the radio and mount the dip switches in a way so that you can access them from the outside. This way you can change...

This may help.

I don't recall a factory CTCSS board for that radio, but you could install a third party board, like a COM-SPEC or Selectone. Not sure if you are looking for only encode or tone squelch, which will make the difference as to what board you use. You will need to be mindful of enabling the encoder...