Trade windows would be fine, just so long as there's an option that could be set for those who don't want to use it. At least that way it allows for both preferences to exist. Really cool about your friend...hopefully that goes forward. With it already being a year in to this board's reason for existence with, frankly, little if anything to show for it...clearly something needs to work out.
If someone could figure out a front-end to change all those options, so it could be set in a way similar to how some games allow you to enter server information (IP/port/or LAN play --though lan would be a whole different beast), that would be cool too. That would clearly free it from being bound to just a single server, should it go down for any reason. Probably considerably more work to put together though.