Hi Motec6.9, lucky for me, I am not taking on nearly as much as what you are at the moment. Firstly, the "baby thing" - congrats to both of you, and hope that all goes well. I've been through all of that just on sixty years ago. Then the bonnet and boot lid - as Michel says, highly unlikely you'll find something locally. Besides, whilst I appreciate that any weight saving is a good saving, I very much doubt the ultimate benefit to be gained once you look at a 'hot' 6.9.
But still, I wish you good luck. Regards Styria BTW, Michel's take on the situation is well worth investigating and I know that if he can assist, he would only be too willing to do so.