A Gundlach Korona 8x10 camera has a rectangular base. On the two outside parts are two slots, two on each side, four in all; the slots are faced with metal that has a groove cut into it. Round head screws fit perfectly. They just slide into place.
A no name tripod has a rectangular top that is perfect for a large format camera. It is not as wide as the width of the camera base. Put the camera onto the tripod and screws in slots dangle on each side; that is where stabilization bars go. Two pieces of wood, 3/4 x 3/4 inch and about 24 to 30 inches long will fit in those spaces nicely. The screws are centered. Screws are left sticking out of the bars a little bit. Stabilization bars thus secured hold up bellows rails on each side of the camera base. The bars attach to the camera base on each side by simply pushing them into the slots. But, knobs or brackets may interfere with bars; cut bars to fit. A tripod made for the camera would not have interfering parts.
Oak was used and screws hold tightly in it. Holes were predrilled small enough to just allow threads to cut into the wood. Extra screws attach the bars to the tripod head and use smaller holes in it as that wood is softer. Sanding, staining, drying and rubbing in sand finishes to match.