Thats some epic stuff you've shown. I asked if you had any photos & you didn't let me down .
So i'm presently on a quest, i'm making lots of 3d Rollerball 75' assets. Here are WIP images of the Honda CB125 bike conversion i did this week. I started with a blueprint of the 1972 CB125 (i think, at least that what it was labeled). Then i went through stills from the film to produce all the additional structure the prop department did back in 1974.