This is awesome. kinda got me thinking as a mechanical engineer if this technology can be modernized. It surely can work , i wish i had an opportunity to demonstrate that.
Yes absolutely. Preheat the boiler using inductive heater like an induction cooktop, pre-compress the boiler using an air compressor, and grind charcoal into small pellets and use compressed air to deliver them into the boiler using temperature feedback control automatically (arduino); store high pressure, high and boiling temperature water in a well insulated separate tank when lorry is not being used, as well as recover the exhaust steam using a compressor to heat up an auxilery boiler to increase thermal efficiency via a modified close refrigeration loop back into the boiler itself. Use the steam engine to generate electricity instead of mechanically powering the vehicle directly, and put the entire steam generator assembly on top of a recovery-braking electrical chasis, making it a steam-electric hybrid that enjoys insane electrical acceleration. That's pretty much it. Then opensource it. No more energy crisis.
It has steam brakes which a very good but they just take a split second to work from pressing the pedal so you need to be on ball, There are many tales about the top speed of these, people have said 50-60mph im not so sure about that it would go over 40mph but you have to think about stopping or having a tyre blow out, its over 80 years old, it cruises nice at 30mph
If you mean like a hybrid and diesel then yes but the labour and money would not be worth it since it is a 1929 sentinal STEAM wagon. By the way in the great grandson of the owner.