Not so sure about money maker. It takes a lot of sales to offset tooling and production costs. Remember, there is tooling out there for these. If there was really a lot of demand they would be in a catalog.
Why don't you call Atlas and ask if they are in possession of the tooling. That would be the first rock I would look under. The second rock would be Lionel, as it was those two who got Weaver's stuff.
My grandfather always said, " If wishes were horses, beggars would ride."