Good luck convincing them to shell out 60K for two weeks. If they could afford it, they'd probably could afford throwing 30K more and keeping him for a year.
In Japan we have a distinction between what we say on the outside and what we think on the inside.
Outside: "You can't afford $60k? Oh, you're smart guys, I'm sure you can figure it out if it is a priority for you."
Inside: "Horsepuckey, YC company, cry me more tears about your inability to find tens of thousands of dollars when you're a mortal lock on a seed round and presumably on the glide path to an A."
They don't have to pay it up front; they can draft an agreement to defer compensation to their next round of funding or to their first $N dollars of revenue, pay him the immediately owed "salary" number today, and pay the delta later.
