GregM, I hear you, and thanks for the comments. I think cars with so called "detailed interiors" make the most sense, I don't think I'll bother with silhouette cars, but there's certainly nothing wrong with that. Time will tell. After the first car I think I'm down to under an hour per car, at least for standard cars. Definitely a dome car takes longer, as does an observation. The worst one was the vista dome car because I had to cut out the entire center section of the clear plastic dome window insert, to make space for the led strip to mount up against the underside of the top. I did this quickly with a dremel cutoff wheel, then it took forever to file all the rough edges down. But in the end it worked well.
A few more pix: