With suggested changes, your itinerary shud look like :
Day 1: 0400hrs(depart) : chandigarh – manali(night stay)
Day 2: 0600hrs(depart): manali-rohtang la-keylong(night stay)
Day 3: 0700hrs(depart): keylong-sarchu (camp stay)
Day 4: 0700hrs(depart): sarchu-Leh (Laods of options from Hotels to Guest houses)
Day 5: 0700hrs(depart): leh - permit, local sight seeing
Day 6: 0700hrs(depart): leh-khardung la-leh
Day 7: 0700hrs(depart): leh - Pangong Tso - Leh
Day 8: 0700hrs(depart): Leh - Kargil
Day 9: 0700hrs(depart): Kargil - Srinagar
Day 10: 0700hrs(depart): Srinagar-Jammu/Pathankot
Day 11:0700hrs(depart): Jammu/Pathankot - Delhi
When you say you are stopped many times for checking by Army, it means there is enough of security & thus its safe
