A couple steps forward, some back. First off, I was able to cold set the front end:
However, the top tube remains bowed significantly:
More importantly, I discovered that the impact had not been across a single axis. The top tube is also bent to the left, significantly. I haven't checked to see if this is likewise reflected on the downtube. Not good.
Many apologies to the frame and to the forum for pinching the seatlug.
This also came with some pretty decent progress around the lower seattube and downtube areas, all things considered:
-Kurt