1)
Why did he say both "Im Al ha'Melech Tov" and "v'Im Yitav Avdecha Lefanecha"?
1.
Malbim: If the king is pleased to build the destroyed city, and I am good in your eyes to be the agent for this.
2)
What was the request "Tishlacheni"?
1.
Rashi: Permit me to ascend to Yerushalayim and build it.
