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J-bass potentiometer knobset in chrome P-style?

I have recently bought a Fender Hybrid II Jazz bass and looking at the potentiometer knobs, I realized, I want to change them into P-bass style metallic dome knobs.

However, after searching I cannot find any manufacturer who would create a smaller size metallic dome knob for the tone knob. Several manufacturers offer aftermarket metal domed knobs such as Gotoh, Allparts and Fender themselves, but none offer a set of Jazz style potentiometer knobs.

Am I stupid for not finding any, and I am breaking some new ground in this? I doubt it, so why don't any major retailers offer this? Are there any smaller shops who do these sets?
As I was watching parts, I noticed the dual stacked pots upper pot seems to be smaller, but the possibility of attaching it in the tone position without the lower part is unknown. I am set on this idea and will buy and try, but would prefer to buy a premade set if any are available.

See this gorgeous paint art to illustrate my idea:
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Long time has passed but eventually I got it together!
I purchased these metal knobs from Allparts. I did not realize that the smaller knob would also have a smaller inner diameter so adjustments had to be made. I drilled the 4,7mm inner diameter larger to 6.4mm as the other 0,25 inch diameters are. Here are the end results. I did notice the smaller knob sits a little high, but so did the orginal plastic knobs aswell. The bass is a 2024 hybrid II made in japan. I have also changed the original pickguard into a black one.
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Long time has passed but eventually I got it together!
I purchased these metal knobs from Allparts. I did not realize that the smaller knob would also have a smaller inner diameter so adjustments had to be made. I drilled the 4,7mm inner diameter larger to 6.4mm as the other 0,25 inch diameters are. Here are the end results. I did notice the smaller knob sits a little high, but so did the orginal plastic knobs aswell. The bass is a 2024 hybrid II made in japan. I have also changed the original pickguard into a black one.
View attachment 7166054View attachment 7166055View attachment 7166060View attachment 7166059
What I always use is VK1-19 for volume and blend, and the smaller VK15 from the VK15T / VK18T set for the EQ or tone if passive. All knobs from Gotoh.
 
You may have to purchase them separately. Amazon, All Parts, Q-Parts and others have the smaller knob, but singly, not as a set. So purchase a P-bass pair of standard knobs and the smaller knob separately.