5 will be alot of work.. but once you have it down im sure it will be fine! do little bits at a time.. and be consistent!! don't let them have their way if they dont want to be groomed.. you have to teach them they must do this.. after a couple times they will get the swing of things.. and of course treats to let them know they did a good job, always help!
you tube has some videos on grooming, you may want to check that out!
(and there is a sticky in the grooming forum.. that (Marcerella02) posted that shows how to groom each part of your yorkie.