now to put the infied in the park.
simply download my infields model from 3d warehouse and select which one you like
copy the infield and paste it in the new model and move it somewhere close to the origin of axes
once you get the point of home plate on the origin, time to rotate it so that the axes line up with the baselines
once that is done, you can extend the foul line to the walls by using the pen tool and drawing a long rectangle to the base of the wall.
then draw the foul line on the wall using the pen tool. you can us the eydropper tool to copy the texture from the existing fould like and paint both sides of the foul lines and the one on the wall