3D Print a model aircraft engine cowl

My dad has been working on a A-30 Baltimore model aircraft from plans since as long as I can remember. He's been painstakingly constructing it from balsa wood and is nearing completion. All he had was a set of old plans in a tube. One problem is how to fabricate the engine cowl. He was going to carve a mold from wood and attempt to create them in fiberglass!  

Enter SOLIDWORKS and 3D Printing. I'm hoping to print a draft version (in Waltham) of the cowl I modelled from his somewhat incomplete plans. I'll attach the STL file. I'm guessing we will need to check the fit, refine, and try it again in a few weeks. Especially since he is in Florida and I'm in Massachusetts.

I'd appreciate any reviews of the model itself and any help in creating changes to get a better print.