Opportunity is missed by most people because it is dressed in overalls and looks like work. - Thomas Edison
Try this art file.1 color. 230 mesh to help provide coverage. 45lpi to help make sure you maintain the 3% dots.22.5 screen angle, ellipse dot shape.Use a very light gray (mostly for the bright white area) and let the shirt come thru for the dark tones.the type is a 10% halftone. Using light gray, that should come visible as a dark gray. If they complain about that, then they need another color.Is should also have some deeper black areas knocked out to help give it more tone/shape from one end of the spectrum to the other, but the art is not that good once you open it up. (low rez jpg). It looks good if you don't mess with it to open it up, so I'm relying on some dot loss at the smallest ends like 1-3% to help create that. Assuming you won't hold the 1% but it's possible at 45lpi on 230.
Run an actual shirt for them. They'll jump on giving you $50 bucks or so just to see how much you are saving them on a whole job looking bad.Yeah, I believe that folks are generally noble and honest as well. Look, there's a unicorn!