Wow that looks great, personally I think it would suit the track just nice these things add so much to the appeal and immersion, I wouldnt go crazy with it but that looks perfect what you have there in the video,I did try this last year on my Thomson Road track:
I thought about adding them to FBR too, but was wary of it looking like a gimmick (a conversation Lilski and I had at the time kept popping into my head). Maybe it could be worth looking at again though
be nice with some vintage painting on the balloons also that would look amazing as well some 1930,s designs, I like stuff like that will take a look