Upon further reflection, I think s05e08 would have been a fine ending for the series. I despise happy endings and prefer conclusions that leave a lot to the viewer's imagination (the finale to the Sopranos gets better all the time).
I'm preparing myself for disappointment with the final 8 episodes next summer. There will be such a build up and such enormous pressure to live up to the fans' expectations that there is no way Gilligan and Co. can meet that mark.