I think the only structure you need to avoid would be located near the tramp post - you might want to verify that. I would try to put it in a location that will give you access and could also be used for storage while sailing (hopefully you also ordered some fat bags to fit in the ports to hold junk) - two birds with one stone. Also, location may depend on the width and flatness of the deck in the area. Hobies usually have foam blocks in the hulls for flotation, but I don't think they are placed aft of the tramp.