If anyone that you spoke to gave the ok to keep in touch, now is the time to do it. If they gave a name give them a call and ask for an email address. Be persistant but not a pest and remember a no only means right at this moment. It’s likely that out of the first group of people that gets hired there will be a number who don’t pass the physical or who for personal reasons decide not to come down. Shoot for an alternate position if you can so you can get the physical out of the way.