The 500/550 motor looks close but the blend of other parts make it different. ..since it is merely art it doesn't have to run...so, the hybrid mix of parts just is for cosmetic eyecandy.
Recent ebay seller of a 60-70s vintage K&B Torpedo "Green Head" airplane motor indicated he didn't test it with gas. I messaged him and said it's a good thing, it isn't a gas motor.
He replied , "What is it!"
It is a glow motor, has a glow plug instead of a spark plug. Glow motors run on methanol based fuel that often has nitromethanol. Spark plugs require timed sparks and a external circuit to provide the spark at yhe proper time. Glow plugs you get hot and the ignition of the fuel after running stable you can remove the battery and it runs until out of fuel if the mix is right.
So, clearly that seller wasn't a modeler and the same applies here. Guy doesn't have one to model it after...
Cool art but,
real thing isn't going get broke easy by the toddler...
toddlers could get "broke/damaged" playing with/on it unattended...