I42,
A very interesting challenge
Thank you, I hope so...
one shot in the dark would be one of the Tornado prototypes
I'm afraid that shot would be wide of the mark. This was not a Hawker product.
I'm intrigued by the digital counter in your second picture
Me too, I had a vague thought it might be something as mundane as a daring way to show fuel quantity, though there is another possibility specific to the type which I haven't been able to find anything on.
Could this be a target tug?
Nope, not a target tug I'm afraid.