Here's where I got with it today. I was able to cut the stock down, make the 75 degree angle miters I needed and tack welded the components together to check the fit. All looks good so far (considering the amount of guess work...). Next up is laying a nice bead of weld to seal the 3 pieces together and take care of the mounting details. I plan on adding a 2" receiver, 2x 150W driving lights, and 2 clevis tabs to this before it's all said and done.