No I wouldn't trust Riley to help them either. He wasn't so eager to do it that they should trust him.
So Tara's talk with Spike helped both :) (Spike with the thought to seek redemption and Tara being human).
Arrgh, Riley. Bad timing for Spike to leave already.

Author's Response: Riley really believes in his cause...that is the biggest danger with him. Spike is a demon and that is the end of the topic with him. k