http://www.tour-beijing.com/private_tour/ This is the company I was intending on contacting once the dust settles on TUT issues.
I have not used them before but read some good reviews when I was researching this a couple of months ago.
If you click on link above you can see their recommended private tours and you can see the pricing of the various options for 2,4,6,8,10 people. I like that they have this all out clearly. If some want to do something different from the others it is very easy to know the pricing and just book separately.
Everyone can read the options and make choices too of what they want to participate in. The clarity of their options and pricing so clear really makes this much easier.
If just four of you want to do a specific tour together then you can book for just four. If there is a popular tour that everyone wants to do we can do a bigger group. VERY flexible.
The pricing does not decrease that much with the numbers and smaller groups may work better.
Ken and I have done all these tours before multiple times and we do want to have plenty of time at the pearl market and for that we will just take a taxi over and a taxi back. So if any of you are interested in that you need to remember to keep at least a half day free.
They do the transfers also from the port. That I will book that for everyone in one bus when it is much closer and we know how many people are involved and where they all want to go.