It will depend how fast you speed along on your machine
Project Linus always appreciates any and ALL blankets/quilts that are made and given. and YES, sew down the binding by machine so it is secure.
We have a Project Linus segment on the Hawaiian Quilting TV program on the web site. We are also editing a full half hour Project Linus Program that should be on line in a couple of weeks.
THANKS to all of you who are making blankets.