Chassis issue or rejuve needed? (k4600)

Tithis

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Bought a k4600 for $50 a few months back and finally put it together after a lot of cleaning, cap kit, reflowing, and replacing the black level pot.

Took a bit of working to get the colors remotely even and once the lights are on you can't see anything. Would you think this is likely an issue with the chassis or should I try and find someone with a rejuvinator?
 

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4600 tubes all go bad in my experience. So I'd want to see that tube on a rejuvenator and see what it shows.
 
4600 tubes all go bad in my experience. So I'd want to see that tube on a rejuvenator and see what it shows.
guns that short on intermittently is a thing with those in my experience. the K4900s however I've had them go full blast colors and those wound up just being dirty cutoff pots. I'm not a fanboy for deoxit but that's one instance where it works wonders.
 
Had this Gold Star TV I knew was candidate for a swap. Yoke is even pretty darn close

K4600 yoke
7.6 x 2.4 ohms and 17.2 x 2.08 mh
TV yoke
8.1 x 3.3 ohms and 20.5 x 2.9 mh
1743358416759.jpeg
Tempted to just leave the TV yoke, not sure if K4600 yokes have issues with newer tubes like the G07 one.

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Decided to just swap the original yoke onto the tube I had been trying to get working with a G07. Worked pretty good, might need to add some purity magnets to two of the corners as I can't get them good without introducing purity issues on the left and right side.

Still has a tiny of a horizontal linearity issue, that didn't change by going back to the original yoke, just got rid of the bowing.
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