Rick, since you're a member of Region 1, you should get a hold of the Region 1 comp chairman for a number. His name is Wayne Laurent, phone number 206-271-4150.
As for the 2.0 wall thickness, that's how the proposal reads in the Tri-Power, but you're right, that doesn't make sense. I believe Dave Taylor (PNW Comp Chair) submitted the proposal. The purpose of the proposal was to accept other organizations with their cage specifications (yes, he had your and rigs similar to yours in mind
I'll have Rob get a hold of him to get the skinny. You can also reach Dave at 206-491-0909.