Wandernomad and GD Sir's estimates should be bang on here. Both have done Leh trips. In fact Wandernomad even told me once that he had gone to Leh when he was 18 on a bullet
, and in the process inspired me to replicate the same althogh whether I am able to do it is doubtful at this moment. However if it happens it would probably be after June 4 after I am done with my entrances , even if it doesn't happen I could come along with you or HVK sir when you do such a trip, provided you permit.
Vikram check your PM