Thanks everyone. I was finally able to get it loose with a pair of pipe wrenches and some help. I think I got it aligned... as far as I can tell, to within a 16th of an inch. The only thing is, I don't know how you can measure from exactly halfway up the back of the front tires because the frame is in the way. I was only able to measure from about 14" up the tires- that is I measured 14" up from the ground, and marked each front tire that high in the same place front and back, and measured between those marks. Hopefully that is ok, but in any case, it tracks perfectly straight with hands off the wheel.
Centering my steering wheel, I was able to loosen the turnbuckle, but the bolts are just round heads with no torx or anything so I had no way to hold onto them to re-tighten it. What's up with those? I am going to get new bolts to use tomorrow so that I can tighten it down and keep my steering wheel centered.
It was too dark to get good pics by the time I was done tonight, but I'll take some and post them soon. Here is one of it almost done that I took a couple nights ago with my phone (still hadn't done the JKS Disconnects):
Here's what I did:
DPG Ultimate OME suspension kit
(See link for details)
Mickey Thompson Sidebiter wheels (15x8)
Goodyear MT/R tires (33x12.5x15)