Ok, received your email, will send you some descriptions, but as I said already, allow me a week or two...
Here are some more informations which could be useful also to other trekkers with similar objectives:
the only camping stoves you are likely to get in Leh are kerosene stoves. And the only fuel you are likely to get everywhere is kerosene.
Camping most of the time is fine, but don't forget one thing: Zanskar is classified as a desert because of the few precipitation it receives. It is also a very rocky desert. There will be interminable stretches where it is virtually impossible to find a camping spot, because it's just rocks, stones and hard, barren, uneven ground. There's a reason why most people stick to certain itineraries, defined by villages or tea tents. Camping next to tea tents you will still sleep under the sky. They charge you, though, but is's maybe 1 $ per night. But they also prepare you tea or food for very little money. This way you support the local economy (and honestly, it's dirt cheap for us), and you also have contacts and insight into local life.
And don't forget: even without a camping stove, fuel, and food for let's say a week and a half or two, your backpack will still weigh 12 - 15 kilograms (depending on what one carries along, and this includes already basic foodstuff like dried apricots, nuts, chocolate and cereal bars). Carrying stove, fuel and food to be self-sufficient for some weeks, will result in a backpack of maybe 20 - 25 kgs, which is quite a bit at this altitude and with steep passes to cross, some around 5000 mts. Don't underestimate this...
If you search in internet, you come across plenty of agencies offering treks, and they also explain the itinerary and daily distancies. This would give you a basic idea. And this is for people carrying a light daypack, because the rest is carried by horses.
Maps to be found on internet:
http://www.lib.utexas.edu/maps/ams/india/
If you scroll down the page, you find the links to each section.
Leh, for example, is NI-43-08, and it includes Lamayuru and the first kilometers of the Zanskar trek with Wanla, Phanjila, until Hanupatta. They are not as detailed as the Olizane maps, but give you a very good idea.
What else? Yes, one thing: I'd recommend you to simply forget about "loosing muscle mass" or getting some special preparation. I've never heard of anything like that. If you do sport and exercises on a regular basis, you'll be simply fine...