One of my hobbies is model trains, and I've learned from that that some people as a hobby actually do 'reinvent the wheel' for fun.
There's quite a lot of differences. I wouldn't notice different hubcabs but beside the office switching sides the whole bar switched sides. Also the poles are gone, sometimes a jukebox or pinball machine. Also double doors only just once there, and in the last episode a backstage for the podium.
Irrelevant but it was used in an episode where the back was shown and it was a sawmill. also it was used in a Knight rider epsidoe as well as some other stuff from the dukes set.