No problem!  Right now we're in fifth period but it's about to be over.  I'm pretty sure we're going to skip over 6th period.  After that, everyone has some time in the evening to do their own thing around Beacon, so there will be some freedom for character interaction or development.  I figure it's best if your transfer student arrives just after sixth period ends.  I'll mention you when the time comes to let you know you're good to start.