and now keeping something to 2000 words seems impossible.

I hear you. I'm dreading my Bigbang fic. I'm aiming at 40k but until now every single scene has overshot my target word count. I really don't want to write more than 40k for this. 45k tops.

If things get tough, I could always cut the story at 40k and finish with, "rocks fall; everyone ascends. They have glowing-squid sex for eternity." Happy end!