After more extensive reading, I believe I would like to move this game to the Golarion campaign setting. However, if there is strong objection from you all I will keep it set in Ihmlán.
My reasons are twofold:
1) As stated previously, the level of detail that I simply cannot match in my homebrew world. This is going to become more and more important as the campaign progresses - and my great hope is to keep it going through level 20 and possibly beyond.
2) The more I read into the further episodes of the AP the more material is drawn from Golarion; it is going to become very cumbersome for me to rename places to fit my language scheme, there is a considerable amount of deific material that doesn't really fit with my current religious development, etc.
I think the one most affected by this would be Aodhán (choice of diety affects favored weapon and domains). In this case, Ryan, I fully agree with your philosophy from your FR PF game - I don't want the rules to get in the way of you playing the character you want, especially considering how well thought out he is. So I would gladly allow you to keep his domain choices and favored weapon regardless of deity choice - I'm certain we can come up with a rationale/backstory to make it work.
I still plan to keep Saor Ghabhaltas as the central city of the game as well as the Mercenary's Guild and all of the campaign elements associated with it. I'll plop it down in the middle of Katapesh and keep the rest as is. I like both the city and the mercenary concept too much to abandon it.
I would be willing to use the common race names as well - in truth, as much as I like them the new names are somewhat cumbersome even for me. However, I'd also be willing to keep them. I will bow to the will of the group in this if we switch to using Golarion.
Feedback? Opinions? Is it early enough in the game to do this without too much jarring disruption?