Welcome from one Bentley mom to another.
He is absolutely adorable. Since mom is 8lb and dad is 5lb then yes, I would venture to say that 8lb is not an unrealistic estimate. But don't pigeon hole him yet, you never know. As for coat their coat can change for up to 2 years. My Bentley just turned 5 month old and his coat is evolving so much I give up on guessing.
Cloud 9 beds are wonderful. I got mine from Yorkie Haven Rescue. It's a great cause and he got a wonderful bed out of the deal.
Cloud Nine Beds*::*Bedding*::*Yorkie Haven Rescue Boutique
The bed was a bit big for him in the beginning but he has grown into it. I just posted this last week of Bentley hanging out of his. He's a bit of a sleep walker.
http://www.yorkietalk.com/forums/att...s-bedrails.jpg
Can't wait to see more pictures and hear all about him.