My 1207 pup has the ability to mount either a grill, or a stove, to the outside of the camper. both slide onto a channel of sorts. I would like to make a shelf to also slide onto this channel when I am not using either the stove or grill (which is most of the time). Anyone know where I can get the correct part to attach to my shelf so it slides onto this "channel"? I can post a photo if I absolutely must, but I am hoping those reading this know the part I am referring to.