Okay, so the diehards that stuck with this thread can take a ganders at what I hope is the solution to the rack issue we've been discussing herein. It's a 3-axes welding clamp made by Strong Hand Tools.
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Although I know which end of a welding whip plugs into the welder, I'm certainly not skilled enough to weld up all of the right angles in the design. In the end, I'm sure that, by having the "three extra hands" that this thing provides, we have a much better chance of getting a quality end product.
By the way, I went for this clamp over the [blue] clamp, pictured earlier in the thread, because of the quick releases you can see attached to each adjustment screw and, even more importantly, the beefier pivot assembly that comes with this particular clamp.