Attempt #3. The top line is an extra 1/8 inch away from the firewall and the bottom line misses the angle bracket by about 1/8 inch. I think I want to move it up a bit more.

Attempt #4. This looks good. 1/8 space between the two lines and plenty of clearance between the angle bracket and the bottom line. Next will be the downward, then aftward bends.