I purchased my drum in Ennis, County Clare at Custy's -darn they don't have a annex in Tucson, yet. However, Brendan White has a web site, and you can goodle it. I would not suggest the double skin in our climate. It is difficult enough to keep one skin happy. Folkshop and Rainbow probably don't have what your looking for.

As for the Alfonso's drums, I regret having to report that my friend got one of those and it has never loosened up for him. I think this is probably a flook, but worth a mention. Also, goat skins are great, but before you order, check if they are the smelly kind (differently cured). Then check if the smell makes you gag, which I have a problem with, not everyone does.   You would hate to order a fabulous drum and then have a negative reaction to it based on smell.

Good luck, Claire