With complete deference to Bob's choices and approval, I'd be amenable to assisting with getting the circular badges produced. (I'd use a specialty soft-metal casting company like those that produce medals and plaques, with a polished faces and enamel or powdercoat fill... but there are other methods.)
If ERA wants to adopt this as a standard logo, to replace all the varied ones, I'd be open to it. Your people, my people, etc. so forth...
The side badges would have to be stamped, nothing I have a source on tap for - 'sides, they're all Buzz's work. It would be kewl to find a manufacturing process that would let variant numbers be easy to turn out - 446, 482, all the various standard stroker sizes.