I purchased a pop up from Lakeshore many years ago, and they were pretty straight shooters then. If you are driving to Muskegon, you should take a drive down Division Avenue in Grand Rapids. If you are heading north on US131 toward Grand Rapids, get off at 76th Street, head east. You will hit Division almost immediately. Head north, you will see Camping World first, then RV World, Veurink's RV Center, Terryton Travel Center. We bought a new camper at Veurinks's, by far the smaller of each of these. They are a family owned place, we were very happy with our trade in and new camper.
I would get off of Division after Terryton and back on 131, Division gets a bit rough the futher you head toward downtown GR.