As requested by TheVirginian, here are pictures of the cowl with measurements.

I'm going to have to call Tower Hobbies, the cowl has a couple small cracks and dents in it from the hardware bag that was just banging around itside it during shipping. I'm surprised, GP usually does a much better job packing. I'm going to go over the rest of it tonight to check for damages. I've always had excellent customer support from Tower Hobbies though, and hope it continues.