There are some differences and many similarities in how the Jumu'a or Friday congregational prayers are conducted by the 4 Sunni schools of fiqh and the Shi'a Imamiyya.

The accurate version, of course, is with the Shi'a who held on to the teachings of the Ahl al-Bayt, the family of the Prophet (s), as commanded by the Prophet (s) himself, and gave their teachings on every issue precedence over other sources of information.

There are many duas that have been reported to be said at the time of breaking the fast. Amongst them is the following:

اللهم لك صمت و على رزقك افطرت فتقبله منا

O Allah! We fasted for you and broke the fast with your sustenance, accept this from us.

With prayers for your success

As you are traveling 5 days out of 7 for a year (20 days in a month) you are considered for that year to be khateer-e-safar (frequent traveler) and so you have to pray full and fast.

To become khateer-e-safar you are required to travel on average 10 days in a month

Tawbah is not accepted from one who just says: “I'm sorry” There are a number of conditions that must be fulfilled in order for the Tawbah to be accepted - as mentioned by Imam Ali (A) in Nahjul Balagha Hadith no. 417:

There is no difference in the belief among Muslims that the Mahdi will be a descendant of ‘Ali b. Abi Talib and Fatima al-Zahra. Even the most bitter Shi’a-hating and Yazid-loving tiny segment of extremist Muslims have this belief.

That, right there, is an important point to ponder upon.

But the majority and brotherly Sunni’s have narrations suggesting that the Mahdi will be a descendant of Imam al-Hasan, rather than Imam al-Husayn, and that his father’s name will be ‘Abdullah.