Something is wrong, your listed MOSFETs are p-channel devices, so the gate voltage should be a volt or so more negative than the source.
Same story, something wrong.
That's the right direction, closer to a good gate-voltage value. If Vs says it's at 7.00V, this means your 5k programming resistor has 5.00V across it, and must have 1.00mA through it, if your circuit is exactly as shown above.
I wonder if you have the right MOSFET installed, if it's wired in correctly, or of it's damaged? I'd also wonder about opamp oscillation, but your 470pF should make that nice and stable. What kind of opamp are you using?
What's the story with Q2?