Roof Top leaking

My upstairs room has water leak in during heavy rain. If drizzling, there will be no leaking. Problems persist for the past few months.

The repaired go up and check for the problem. He found out there are crack in the wall. Most likely water leak in from the crack. He suggest 2 solutions as below:

Solution 1:

This solution is cost $600.

Solution 2:

Solution 2 is covered with Aluminium plate and the cost will be $1300

I asked another quotation from another guy as below:

Not much different in term of price.