Dthreap- yea, I've tried that too w/ Fedex. Same thing. I guess they don't want people hanging around the terminal bugging them for shipments all the time.
I managed to work this out anyway, as I had a buddy hook me up with the parts I'm waiting on from ZZP so I can actually get it done as planned. He owed me some $$, so I dropped by the GM dealer and got them locally, with only the LIM gasket being more in price (only $10 difference) using the $$ he owed me.
So with that taken care of I will have a spare set of alum. LIM gaskets and coolant elbows onhand that I can either sell for what I paid, or just hang onto.
Time for the fun to begin!
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These are highly engineered precision vehicles, the first step in diagnosing the problem is to strike the suspected offending part sharply and repeatedly with a blunt object, then re-test.