Back in the days of steam in South Africa, a steam generator used to be coupled between the tender and 1st car. Would any person be able to build one? A photo is as follows:
We used to call it the SHV - Steam Heating Vehicle - coupled on many steam drawn passenger trains in the cold parts of South Africa in winter. Basically had the shape of a tankcar
Can't build one ..have no clue or inclination to build at this time.