How to tell if original engine

[HK1837]

Wow, a Cyclamin Metallic HJ Sandman. Only the 4th i've recorded!

Is the chassis number BHJ20444B? Last number is hard to read and it can't be a 1.

Engine number will start with QR7003.

[Sinbin]

And the worst thing is that it is currently bright orange

[Valencia]

And the worst thing is that it is currently bright orange

Someone has good taste

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[davegmh]

Is this supposed to be it ?

Attachment 13153