I picked up almost $100 worth of steel (prices sure have gone up from what I remember!). 6 feet of 6" channel, 1/4" thick and 6 feet of 3" channel, 1/4" thick. I'll be making a new back bumper using the 6" channel and 2 6" legnths of the 3" channel. The 6" legnths will slide into, and will be bolted onto the frame rails, and the rest of the 3" channel will be for the tongue of the trailler (the frame rails will be bent in and joined at the channel in the centre). 6" chrome oval LED lights will be bolted to the back of the bumper, and it will be coated in bed liner.