Great post, dspelman. Lots of good info in there.
As a reward - I have one or two of the 'skateboard wheel' knobs from a Destroyer that I once owned. PM me and I'll dig them (or it, if I only come up with one) out and send them to you as a favor from one IBZ owner to another. It's not a full set, but if you end up having to buy the remainder of the set off of FleaBay, at least I'll save you some dough.
- D