The "goop" in question is a mixture that Woody was kind enough to pass along. It starts with bits of styrene in a glass jar, add MEK(find at Home Despot) and let sit for a while until it turns into a, well, goop. Mine had just reached its "smooth peanut butter" consistancy needed as Woody mentioned. I was able to coat the bottom half this afternoon.
The bonus to this mix is, as using it for a putty of sorts, it dries as styrene that can be scribed. Scribing putty doesn't really work. Don't know about Bondo or epoxy putty. This is the first build where I'm using this. More pics to come. Mark if you need any help, let me know.