Dragonwriter, yes I would allow those variants and those variants are ok. They come from the Complete series, correct?
Everyone, I originally thought to start the adventure in the middle east and have a long caravan journey to Canterbury. The more I think about it, though, the more I think we should just have a long trip through England to keep the setting consistent. We might have to practice suspension of disbelief in regards to how long the pilgrimage takes or have the start of the journey begin further than Southwark London, but if you don't mind I won't mind. Humans might be britons or foreign traders, while demi-humans might be of the fay folk, which everyone in England knows exists anyway. Nothing odd. Just make sure you carry a charm in your pocket and not cross them.
Also, feel free to post your characters on this thread. We can keep the character sheets here, or create a rogue's gallery depending on the group's preference.