@SanderJK Thanks for the thought, but I want to run the stuff I have (or at least a fair amount of it) before getting more. If the players enjoy the setting though, we will look at your suggestion later.
@Smallfoot Thanks for the info. Since the players all knew each other we glossed over how the characters met, so I may use 5-08 as a flashback for that and I now have the start of an arc.
@Conjoy Thanks for the replies. If there is no inherent chronology or story arc (beyond what has already been mentioned) then I am willing to work it out. I just didn't want to reinvent a wheel especially if that meant reading the other 24 scenarios before we finish the first one.