I'm guessing these 'simulation' programs are for the 'obedience of fools and the guidance of wise men' ?...
Listing voltages to 3 decimal places is clearly nonsense. No two 'real world' examples of that same circuit are going to have anything like the same voltages present!
Still, I'm guessing these simulations can give useful 'guidance ' ? - they certainly seem to be popular among some electronic hobbyists.
I had forgotten that this circuit is not complete, and you have FET 'front ends' that need (presumably) to be calibrated for minimum distortion? (similar to the Schoeps G-S calibration pot?)
That will of course need a regulated supply.
You don't therefore actually need a JFET input op-amp in this case, strictly speaking.? Are there perhaps other op-amps with a lower input impedance - and lower current requirements - that might serve better here?....