This is too late to help for this trip out, but Tobacco Cabana in Cedar Hill (20 minutes south of Downtown Dallas when no traffic)is a great little shop. They don't carry tins, but have over 70 different bulk pipe tobaccos (most are $5 per ounce)and will mix up any combo blend you want. They have mostly estates and have over 150 pipes at the moment. I have found some great deals on estate pipes there. They also have a lounge now.