Trust, dog. If all goes well on Thursday, the car will be set on the ground for the first time in 16 months. If not, then I'll have to wait another week for two more tires.
*Edit*
Caved in to my own stress-case of a mind. Instead of dealing with the fuckery of blowing on a stretch like that, I've decided to get the 205/50's put on the 9.5J's tomorrow, and I've ordered another two tires. Waiting on the BFG G-Forces to arrive to put on the 10J's. 215/50's, to make it a little less aggressive, and not nearly as tough a sidewall as the Star Specs.
Kind of bummed to not have those super awesome tires in the back, but I'll get over it... Maybe. :(