A long overdue update:
I have finally found and purchased a donor ST!
It was in West Virginia. Here it is in the trailer to head to Florida to Vaccar's shop:
And here it is in the shop with the TC:
There are a couple things to fix on the ST before they take the motor out - Vaccar thinks it may have a small vacuum or boost leak to chase, and it's better to get that nailed down now. But, things will really start moving now!