I managed to get all 4 spacers out, both rear support brackets, and one of the trailing arm brackets swapped yesterday.

The drivers side trailing arm bolt is seized, and I cannot remove the bracket due to this problem. The car is together, but with mis-matched brackets right now. I hope to get my co-workers angle grinder today to cut the old bolt out. Luckily, I kept the bolts from the BH that I tore apart.