Well, first of all, welcome to BG! We'd love to see you around plainville, especially saturdays and thursdays! second of all, my brother collects battle boxes, and said that as long as you are careful, he doesn't mind you using one for the day.
Pick two, as he will be playing one of them and might choose your first pick, but it will most likely be skorne. Also, if you happen to have Broadsides Bart, i have the rest of the talion charter box if that floats your boat (PUN'd)!!!
Either way, hope to see you there, and any thursday that you can make it.