I have a 14th level human Warden named Sigyl who is currently parked near the Chetwood. I wasn't planning on using him for anything until my older characters got about ten levels higher, so he's never been to Bree and doesn't even have a vault. And, come to think about it, he's one character that you'll almost never see online, except by appointment. Sending him a letter by post won't do much good as who knows when he'll get it.
But if you need a low level character near Bree at some point tonight, just post where and when on this board, and he'll be there.
Otherwise if I'm online it will be as a mid-forties human doing a solo slog through the Misty Mountains (I considered suggesting a Mammoth hunt, but I think there would have to be a limit cap of about 45 and a group max of 3 or it wouldn't be very exciting). But once Wheeler leaves Gloin's camp he'll be generally out of touch (and up to his armpits in snow beasts and polar bears).
Speaking of cold, are those heavy bearskin cloaks generally available somewhere, or were they Yule festival items? Linen cloaks are pretty light wear for the mountains.