Its still worth a try though whats the worse could happen parts get replaced everytime!!!!
Don't take offense.
Changing parts that are not defective clouds and corrupts the troubleshooting process. Never change more than one thing at a time. When you change more than one thing at a time and a problem surfaces, you don't know the source of the problem.
In this case, the problem is not the ignition system so changing components there will not get the engine to turn over. What it will do is cause someone to spend money that they do not need to.