Fitting Help - Rage X Inzer Bench Press Shirt

[Bigdaddypappapump]

Hello, and thank you in advance for any help. I'm looking for help with the Inzer Bench Press Shirt. After reading up on sizing, I measured around my shoulders (53.5") and ordered a size 54" Rage X Inzer Bench Press Shirt (Closed Back). Well it arrived, and the body of the shirt is enormous. The arms are very tight which sounds about right from what I read. The shoulders seem to be about right as well. But the torso is probably 12" too large. I haven't found any guidance for tailoring but that seems like the only option. I'll call Inzer next week, but thought to ask for help. Again, I appreciate your help and advice.