To repeat what was mentioned above, what you want/plan to do does not impact the school’s admission decisions.
Not taking a math class senior year, along with a math SAT below the 25% mark is going to be a challenge. I fear you overestimate the value of the trade school certification.
Put the material discussed above into a LOI, but I strongly recommend developing a contingency plan. Ignoring the potential problem won’t make it go away.