No!
Do not make copies. That property is not ours to steal.
A cessation of production is not a license to pirate their good works!
By this logic (displayed by Andy, above), we should feel comfortable knocking off GATO parts the moment Revell puts those tools to the side for a year or two. That's stealing, so is the act of knocking off U-47 parts without the owners permission.
Too many in this game are fast-and-loose with others work -- making tools off other peoples work, other peoples PROPERTY!
Don't strike tools and/or make copies of others property without the owners permission. Unless you want to chase the Players in this hobby of ours out of the game.
And my admonition here applies to those who use the old excuse: "it's only for personal use". You want that part, buy it on the open market, through a source that sells original goods, not knock-offs!
David