You can do it!! My goal was exactly yours, to finish and not stop running (oh, and not pass out ).
My "last day" of the C25k actually was my race. I finished in around 33min I think. (I have it written down on the race number, which I can't find in my messy desk!)
I have always heard for longer races (so I assume for 5k's, too) you never really run the full race length in training, but you do it during the race. DH was just talking about this with a friend who ran a marathon.
According to the plan I did, at the end of week 9 you'll be running 30min, and then week 10 is 35min. So you'll just run 35min.
Seriously, if I can run a 5k, so can you!! My motto regarding running has always been "only run when chased" and I haven't gone past the 5k mark yet. And I am OK with that.
You can definitely run it!!!
"Every mother needs a wife." - Amy Poehler, Yes Please