Excellent write-up, site, and cause. My wife is gonna use this as one more reason for me to take her to Ireland. 
Thanks for taking the time to talk through a few of the setup issues you encountered, particularly related to VAT. I'm hoping we can get core to a point for 2.0 where you can set the product price excl. VAT on node forms (Al's providing a lot of feedback on the issue), but in the meantime I hope others can benefit from your approach!
