I like my idea better because it's mine.
Great line! Brutally honest, and it completely captures the thought.
As to the idea of using the warm engine's heat to warm the cold engines, Garfield is correct, this would heat the cold engines much more quickly than electric heaters (water jacket cast into the block runs throughout the block, so you're heating essentially the whole engine at once, as compared to the electric approach, where you're heating one spot and heat has to travel to the rest of the engine via conduction through the cast iron), but there's some additional things to consider to make this work correctly:
1) Of course both of the other engines need to be water cooled. The truck certainly is. Same for chipper?
2) As this approach mixes the cooling fluids between engines, need to be sure that all three cooling systems are using the same coolant/antifreeze, in the same concentration, and all three systems need to be well maintained.
3) Location of connections - Need to have the connections on the source engine located where they aren't isolated from flow if/when the thermostat closes. I suspect that there will be enough cold in the remote engine to cause the source engine's tstat to close when the remote engine's cold fluid makes its way back to the source.
4) Need to have a shutoff valve in between the two connections on the source engine, and this valve has to be closed when you want to heat the remote engines, and care must be taken to remember to open it when you're done
