For reference, I´ve recently been in contact with
(...oh yeah, anyone have any experience with them BTW??)
to cross China on the way to Laos with a group of total 5
bikers in August 2013.
The whole thing has been estimated by them to cost
110.000RMB, if coming from Kazakhstan, and spending
4 weeks inside China. And 100.000RMB, if coming from
Mongolia (crossing at Erenhot – I didn´t know, that this
was even possible, but that´s what they claim!) and spending 3 weeks in China. Exit from China is Mohan to Laos. According to the estimate, it should include all costs, except the group´s food, accommodation and fuel. So it should include the costs of the guide´s car, too.
I don´t have any experience with this company good or bad... but I am a bit worried, if there will be some "hidden costs" that come on top of this, when you´re in China, and can´t back off any more (....well, I guess there´s only one way to find out!)
But if there aren´t, then in that case, the more expensive option would be about 3500USD per head (or 2700 euro). A lot of money, sure, but perhaps a bit less than I thought it would be. That kind of money still gets you a long way in many other places around Asia! But I can´t deny, that to ride from Helsinki to Singapore would be cool!