I like your can restuffing technique. It's different than mine which I will post at some point. I only restuffed paper caps on one radio because the customer wanted it, but restuffing the cans is the best option because it doesn't add any clutter underneath the deck, and if someone is using a SAMS or another identical chassis for reference, they still look the same.
But we have the same issue: what adhesive to use for bonding the cans back together?
I've been using two part epoxy, and indeed, it will be decades at least before they would ever need to be addressed again, but I was thinking about using a high temp hot glue or even hide glue. In other words, something that can allow the cans to be taken back apart with heat.
Oh, and your wiring is FAR too neat!!
John