[Solved] Designing 12AX7 balanced output preamp

Moses Asks: Designing 12AX7 balanced output preamp
I’m new to tube amps. I just built a preamp using 12AX7, after several tweaks it finally worked. And I planning to build another preamp with balanced output for amplifying signal between electric guitar and audio interface. Input signal up to 1000mV (?), and have at least 80 of gain. This is my draft:
12AX7 phase splitter

Can anyone check my design to fit the requirement?

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