Coincidences are great.

I need to make a preamp (voltage follower, mostly) for this bass. Impedance must be low but noise must be minimal.

OTOH in another project, I am considering building a discrete amplifier.

I could use an integrated circuit but I'm not sure that would answer all the questions that might appear. But since low-noise, low-power signal amplification is a goal shared with another project, it is possible to share insight and designs.