Well, you actually hit the nail on the head with my personal preference:
Announce fantastic results, issue $500M+ of stock at a $30+ SP and then take your time to figure out what your next move is. A secondary issued correctly under those circumstance will actually drive the value of the company higher from there, not lower.
I think any deal done before IVPRP results are made public will always be in favor of the other party vs SGMO.
Regardless, as you say, our bed is likely already made. Let's see what they have come up with.