Neato Limo!
I've always wonder about the chassis reinforcements, if any? I (we'd) like to see some chassis pics if you could?
I'll try to get under it soon. Right now she's tucked away in the corner of the garage. It's an area I dread of having to ultimately restore/repair but i would do everything and spend whatever (over time of course) to do so. Here's a little more specific build info