Olaf, I have no quibble with you taking Calistria for Penn's primary patron deity. I feel duty-bound to let you know, however, that I'm reading Calistria as leaning more toward the evil end of neutrality than the good end. Calistria's alignment is CN. Her portfolio includes: trickery, lust, and revenge. Her domains are: chaos, charm, knowledge, luck and trickery. I don't expect that characters will be an exact duplicate of the deity they worship. There is a lot of wiggle room there for Penn to be a follower of Calistria. As the adventure progresses, however, you might find that my take on Calistria's evil tendencies might get in Penn's way if Calistria reacts toward her supplicant with disfavor.
As I read things, it also seems to my eye that most of the laity will worship different deities at different times, dependending upon circumstance. A farmer who primarily pays homage to Erastil, for example, might also offer worship to Abadar on marketday or to Gozreh should a sea voyage to a larger city prove necessary. Having Penn worship Calistria but also offer tribute to Desna is therefore not problematic, not at all.
Kaodi, I'll download and look over your amended sheet later today as time permits. Thanks for letting me know you're done.