I'm building an outdoor table/chuck box to hang on the existing support rail. The camper came with a grill that sits on the rail with one of those metal support poles that fits into a slot in the camper frame. I'm thinking about using that existing slot and adding another slot for an addition pole (since the table will be about 4' long, it needs more than one support). Has anyone ever cut an extra slot in the frame? Do you have any tips or suggestions?