Aw that sucks GSimonds! I hope the postal gods are with you and a miracle happens that you get the batteries earlier......but then we are talking about postal workers......they don't have gods, I think.
Yup, lots of reading up in the reo tips and tricks and lots of practice squonking (with an empty bottle) is in order. Once those batteries come it will be great. The eGo-T is a fine ecig for starting out on and keep you going until you can use your reo, but once with a reo.....you never go back