Resources are based on current level; I have no idea what level we will be when the time comes, but based on to-date levelling speed I'm guessing 11th to 12th level.
1. Kalashtar Telepath 8 (me)
2. Dryad Paladin 8
3. Halfling Rogue/Acrobat 8 (unsure of level split)
4. Half-Orc Barbarian 1 / Cleric 7
5. Aerenal Elf Sorcerer 1 / Monk 7
6. Human Sorcerer 8 (Thayan expatriate)
7. Gnome Wizard 8
8. Spryte (arcana unearthed) Wizard 8
Based on current power, (metagaming hat on) I have a feeling the Thayan opposition will be HUGE when we actually encounter them. (metagaming hat off)
The Dryad got around her tree dependency prior to my having met her - it's something she has been reluctant to speak about, and OOC the GM and her are tight-lipped.
"Scorched Earth" policy is definitely out of the question - it's the dryad, gnome's, and halfling's quest, and we others agreed to help them, in exchange for their helping us with our burdens.
The Thayan response will likely be "heavily armed logging". Knowing how the DM plays the Thay, the "loggers" may well be a bunch of controlled wood and copper golems under command by wizard foremen

Or it could be a contingent of slaves under duress. The paladin may have some problems in this instance, but causing a slave armed revolt changes the problem into something much easier to handle.
Their response is first and foremost on my mind; the counter-assassination attempts are what are on MY mind. To this end, the next few sessions are going to see me concerned with non-detection and reveal detections spells and powers rather than more firepower, so that when we are elevated from "fly in the ointment" to "thorn in the side" they can't just track and kill us.
Also, something you just said reminds me to remind the cleric about dismissals.