Fantastic idea! It is so empowering to meet up with other LBS's... and uplifting. Honour, do you ever get to Europe? Lot's of us here. Crazystuff was in Iceland with a few friends last month, she loved it. I wouldn't RULE it out, if I were you.
Organize it Honour and you might be stunned at who will be interested. I for one have NEVER been too Iceland and I could be persuaded, hehehe. Remember, we can be in most places in a few hours, not weeks on a steamer anymore... hehehe.
hugs Stayed