Two weeks will fly by. I hope you'll post about your stay when you get a chance
I would check in at CR since the concierge is located there and they can add the tix. The bellman can bring your luggage from CR to BLT or you can check in at BLT if you prefer.
You'll need to get your mugs at the CC. You can order room service from CR at BLT. Don't worry about OCI. It shouldn't be too bad checking in around 11 unless a large group of ME arrive . OCI just pre registers your credit card and gets your info. packet prepared before arrival, which isn't a big deal to do in person. You'll still need to place any room location requests in your reservation since OCI doesn't really let you do that.
That is far out. Could be a convention block
. I checked and there aren't any marathons then. Hmmm...