What's wrong with finding an original used setup? I see them for sale often, and not heard many complaints about them.
The original boxes were designed for 28" tires. I'm running 35" tires with lockers and my rig spends more time off-road than on.
My point is more along the lines of shoddy craftsmanship for an advertised "Spankin' NEW" box. I doubt WH has even seen one of these out of the box. But I'll bet they are going to be opening some boxes on the shelf to see what else has been coming from that manufacturer.
As far as welding goes, I wouldn't even attempt it. You would have to disassemble the whole thing so you can heat the entire body before welding. Critical in welding cast iron. Then you have to let it cool slowly over time. Otherwise you will get cracks. Then reassemble. Forget it. Also depending on the country of original for the cast bodies, they may not even be weldable (Pacific Rim cast just melts).
I am gone next week but hopefully I have time to call WH and get something else on the way so I can fix it when I get back Friday night.
I'll let everyone know in case they were interested in the same kit that I got.