As I've said before, I don't know much about how the SBI system works so I'm not sure about subdomains there.
But my question about the offer thing would be: are you ready to go with it or would you be buying them now and sitting on them for a long time? Was it you that had a friend who you would share the cost with? Can't remember. It might be a good way to save some cash but maybe not if you are not ready to use them...
...or was that just a question to yourself - just realised it is in your sig.