Haven't been with Ferris Wheels but I did the same trip a couple of
years ago with http://www.asianexperience.com.au They were much
cheaper. He is Melbourne based operator.
That trip is very hard work, long days, shit roads and the altitude
sickness will make you feel like your head is imploding... but once you
get over all that.. its fantastic. Other tours through northern India,
which do not attempt the dreadful roads of the Himalayas are much more
relaxed and stress-free, and the accomodations are much better.
Nev..
'08 DL1000K8