I know you probably hate me about now, but I just remembered ANOTHER flame tank prototype.

But this should be easy to do; it's basically a M26 Pershing with a greeble added to the turret.
Development of the T35 began October 1945; most likely because the "coaxial" flamethrower T33 Sherman was now obsolete as a gun tank in the immediate post war environment against what was projected in the next couple of years, so a project was started to make a Pershing version of the T33 as the T35.