I know some people were asking about the different sized trucks, but unless the geometry changed with different versions, eg I would think that any standard Indy truck sizes would have the same + measurement, certainly it seemed that lining up 139, 144, 149, 159 and 169 all are the same, as were a couple of other trucks of the same make and model in different sizes that I had here.
Anyone else able to see between two or more of the same truck - at least you can just put them up against a wall or something as they would have the same baseplates, just longer axles, which don't affect wheelbases in any way.