The party has negotiated a truce with the hidden drow enclave and Gar & Nar, so those areas can largely be ignored. The trolls have not been encountered yet; perhaps an ambush is in order. Everyone loves fighting trolls, right?
In addition I've decided to eliminate the drunken delver from 9-8; it's obnoxious and a distraction from the main theme the party is pursuing and they certainly don't need any more distractions at this point. Likewise I will omit the teenage stone giants, for similar reasons.
Galdiera Goldmoon, the polymorphed half-celestial guarding the bridge, is another story. Unless they decide to fly, they will have to cross the bridge at some point. She's a potentially fantastic ally if the party decides to continue through with the theme of Whiterock. She is also a considerable rebuild; paladins are significantly different between Pathfinder and the original 3.5 material.
This also allows me to trash the original 9-7 text. It's long-winded in its history and short on the actual tactical details that could make it an interesting encounter, especially given that it is by default a combat encounter. Save the plot development for after the fight!
It's worth noting that the original author mistakenly included Galdiera's half-celestial abilities and resistances in the kobold statblock. This is a no-no. When polymorphed, you lose any supernatural abilities based on your previous form!
Three encounters before they exit the level? I can do this!