I have admired your work, and I believe that if I had your skills that I would make a new taller grill from scratch, that might give it a more proportionate look, and then if I was satisfied with it, swap them out. If I couldn't make one that I was satisfied with, the only harm would be the loss of time. Just my two cents, but this one is going to be an awesome build either way. I'm looking forward to seeing more!