I agree with Christine. Sure an industrial would make short work of the project but a class 15, with a size 18 needle and some 69 wt thread, will do what she wants to do. It may take having to use the hand wheel to make a stitch at a time on some areas, but it will get the job done without having to buy an industrial machine set up in a 42 x 20 motor stand.
If she was making gear for the whole platoon on a daily basis then yeah - get an industrial.