The two overhead crane runway girders for the enginehouse were purchased secondhand for half the cost of new steel. They both need a few gussets welded in place and holes drilled for the runway rail clips. The photo shows one of the girders in my garage at home being drilled for rail clips using an ancient Black and Decker magnetic drill press. It poked twenty 7/8" dia. holes in the cap channel and top flange of the 22" wide flanged beam without any trouble at all. However the gear whine could be heard throughout the neighborhood!