Thanks for all the comments folks.
@klutz_100: I agree with you about the bonnet, one of the problems with such a small scale, even a small gap looks huge.
It's down to the thickness of the resin, I thinned it down as much as I dared, but any thinner and it would almost certainly break.
I'll be displaying the model with the bonnet off anyway so I decided to settle for an imperfect fit rather than risk destroying the part.
Once again, thanks for all the kind words and encouragement, the only question now is what's next:
'53 C-Type Jag, '66 Ford GT40, '95 Mclaren F1 GTR or maybe a street car, Dino 246 GTS or Ferrari F430?
Stay tuned for the next installment of "Rab strains his eyes and patience in 1/43rd"
Cheers - Rab.