Interestingly, the K-Line California Zephyr cars did the iconic Budd dome rather well.
Interesting indeed. I had the K-Line NP dome car here for a while, and found the dome undersize and toylike. I use brass parts and make my own domes.
And while I too am dazzled by the realism demanded of toy train hobbyists, I am grateful for it, since I can now purchase almost anything i want in 3-rail and convert it to run on more or less realistic track easily. Keep demanding scale models for your tinplate track!