I would agree with the people who are suggesting that a commune might be a better choice. Glomdoring tends to be the most scholarly-oriented, and is probably the better of the two if you want to go for the lonely, isolationist (though not completely, since you still want to have access to the knowledge base) type. If you want absolute specifics, I would recommend a faeling shadowdancer, as the guild is very scholarly oriented, their RP tends toward the more melancholy, there is a strong RP atmosphere, and they are just generally one of my favorite guilds. The Glomdoring itself seems to follow a lot of the RP you are suggesting on the whole, though if you go with a warrior or with a blacktalon you might be called on to help in fights now and then. I don't know much about the bards yet, so I'll leave it to others to elaborate on them.

Serenwilde would be the next best IMO. They tend to be more open, community-minded, and spirited than the Glomdoring. They have their share of brash snuggle-bunnies, which would probably not fit your character incredibly well, and there are regularly arguments and political contests going on. There are a few elements that might not fit perfectly into the RP you are suggesting, but that might make it a very good backdrop to build your character. For example, you can get tired of the bickering and grow to hate 'dirty politics' even more.