Over the weekend I installed the gantry on the carriage. It puts the height of this model at around 33 cm, which translates into over 90 ft in HO scale. According to the instructions, the gantry is designed to fold flat on the carriage for transport. Unfortunately, I managed to break one of the support struts,
so I figured the parts were a little too delicate for this feature; well, this model will be glued-up in the deployed position. Anyway, this HO scale interpretation will make it difficult to fold the gantry and pull the carriage with some sort of loco, so I guess this is all for best.