Hi! I'm planning on ordering 5 grape vines & several Virginia creepers by the end of this week but I could use some help.we'd like to plant 3 different eating grape vines that will hold up in Ga's clay soil. What do you suggest ( we'd like at least one to be a concord )? also, can you tell me what we need to do to the clay to prepare for planting these vines? The arbor is amost built but I don't want the vines to arrive before we are ready. we know nothing about growing grapes but are really excited and want to do it right.