In the meantime, I'm shaking the couch cushions to be able to support more than one student.
You want 3X what a grad student makes makes? That makes you almost as expensive as me, and I'm the PI. I don't say that out of arrogance - I say that because that means I now have to pay for both of us while you go do science. In a grant, you're actually more expensive, because some of my salary is covered by the state/teaching/etc. while you're a pure soft money hire.
That's also ~45% of a non-modular NIH R01's yearly budget once you include benefits. Which means I'd be frantically writing grants with ~10% pay lines (being optimistic - the effective pay line for a PI under 40 is laughable) just to keep your paycheck coming. Because I can't fund you via a training grant, or an RA/TA line.
Keeping you employed for three years would consume my entire startup package. No travel, no data acquisition, no lab equipment...just you.
I'd like to be able to do all that. I'd also like a unicorn.