From Lhasa to Kathmandu around Xmas 2010

Hi there, my wife and I are looking for another couple to travel from Lhasa to Kathmandu around Xmas this year by land (4WD) and the idea is to organise a few days trip. We are now in Shanghai and will be in Beijing before getting to Tibet with a 3 day train. The idea is to leave Lhasa around 23rd Dec 2010 and get to Kathamndu by the 28th Dec, spending Xmas somewhere in between. Please contact us if you are keen so we can discuss details.Happy travels!!!
Alejo & Maria