Wow Jake, is a prospective purchase, or do you actually have it?
It wouldn't be asbestos that I'd be concerned about, it would be the EHT.
6kV may not sound a lot; a colour set has typically four times as much, but if ever the old adage "Its the volts that jolts, it's the mills that kills" was apt, it's in this context of mains derived EHT, so take extreme care.
https://www.vintage-radio.net/forum/...ad.php?t=25874
https://www.vintage-radio.net/forum/...d.php?p=414133
Graham.
G3ZVT