Honestly, I just got bored and wanted a bumper. I had no plans, just pictures of road armor and trailready bumpers as a guideline. I looked at how they were engineered, their similarities of stress points, so forth. It really is not hard at all, just take your time and get some plywood to make a template. Once you have the bumper off just take some rough measurements of width, depth, how far the frame mounts you want it, and height. From that point, just tweak and modifiy as you go until you have it where you want it.
Once that is done and you have your 1/8 or 3/16 plate ( i used both) transcribe the face measurements first, cut that out and bend it up. After that is just a matter of keeping it square and filling it in with plate. Use big peices if you can as it makes your finishing a hell of a lot easier.
'11 Reg Cab Silver 4x4 Tacoma-dont even know where to start.
'02 black fx4, 2 sticks, superlift,33x12.5s, beadlocks-sold. the bumper- also sold
'00 red trailhead, 4.56s, 285s, beadlocks, spindles- sold.