In regards to the ending of the "Stars of Sargasso" script, it ends on a pretty somber note. Spock isn't involved at all, he's still recovering from his wounds (both a punch McCoy gave him earlier and the stab I mentioned a few posts back). The ending focuses on Kirk and McCoy. McCoy stares off into space, monologuing on how he'll most likely never recover from Joanna's death. And Kirk responds (half to the audience) with a monologue about the importance of dealing with pain and rising up from it. The End.