Various masaail of Hajj & Umarah

Q: I will be leaving for Umrah in a week. I will be landing in Jeddah, and I will have to be in the state of Ihram. I have a few questions regarding going into Ihraam. 

1. I will make the ghusul in South Africa that morning before I leave for Jeddah. Will it be valid if I go into Ihraam on the plane before landing in Jeddah?

If I go in to Ihraam on the plane must I make the the 2 rakaats of Sunnat Salaah on the plane.

2. As mentioned in question 1, if I go into Ihraam on the plane, must I proceed straight to perform Umrah or I may go to the Hotel?

3. As mentioned question 2, if I can go to the hotel and then perform Umrah, can I remove the Ihraam I was in and make ghusal and re-enter in to Ihraam?

Q: A family member who occasionally consumes alcohol had his last drink on the 3rd December 2018. He wants to reform, go back to salaah, Quraan and is planning an Umrah trip in January 2019. Please advise what ibaadah is accepted (salaah, dua, zikr, Quraan) if not when will his ibaadah start being accepted by Allah and when is the earliest he can perform umrah?

Q: Can we perform more than 1 Haj and Umrah. Do we get the same reward as the first one if we perform Haj and Umrah more than once?

Q: What if the wife is not happy when her husband is going for umrah himself. Will his umrah be accepted?

Q: Some people touch the wall of the Ka'bah and cry and ask Allah for forgiveness. Is it allowed? What is the ruling if one does this?

Q: Can we touch the Kabatullah like the walls, door, etc. If not, please let me know which places we need to touch.

Q: If one cannot get to the multazam to make dua due to the large crowds, is it okay to alternatively cling on to the Kabah from anywhere else around the Kabah and make dua? 

Q: I would like to ask about going on Umrah on a monthly installments basis. The amount is fixed and I have to to pay monthly installments for 30 months. The price is fixed and the monthly installments are also fixed. Is it allowed? 

Q: I heard that embracing one another on the occasion of the two Eids is not permissible in Islam. Does this apply to embracing the haajis on their arrival?

Q: I have been saving an amount for the purpose of Hajj (for me and my wife). Suddenly I have been asked by my elder sister to go for Umrah because she does not have any other mehram. Knowing Hajj is Farz while Umrah is Nafil, is it permissible for me to perform Umrah before Hajj with the amount I had saved. (My sister has already performed Hajj once with my father in the past but I have not).