Can I possibly buy this contact pro dog tracking devices with 5 collars, I realize there’s a model called cp 3000 and cp 3001, as I’m buying for my friend in china who is going to use for his hunting dog, would it be possible for you to shipping to china? I’ll supply you the address and will pay the cost of freight. Please advise how much will it be for 5 collars and one receiver, and shipping cost as well. Please reply asap. Many thanks Sonny