If company credibility is what you are looking for, then you didn't even mention the #1 company, in many peoples' opinion - ERA. Also, appearance "fidelity to scale" puts them in the top three or four.
http://www.erareplicas.com/
My humble opinion!
David Lowell
ps In regards to Shelby, I would wait to see how everything shakes out for them. They have just gone through a partial ownership change.