I, too, might be interested in this depending on the item swapped, and timing. Did you have something in mind true4uca?
No, I am unable to host as there is very little me-time for the foreseeable future.
An issue with inviting other countries to join - we get right back into the postage dilemma. Yes, they can send here if they don't mind the postage but one of us then has to send outside of the country.
Our system is similar to the US postal system. It does not seem to be as efficient. And I have found that two weeks seems to be the magic number for parcels in either direction, although lately a week seems to be doing it.