Hi Andy,
Sounds like a good place to put the VIN. Sorry for being a bit dum but I leave the book at work and have no idea what chassis part is what.
With regard to the internal panels I have DA'd the edges and plan to pad out the transmission tunnel and make pads for some of the side panels so my knees will have some skin left on them...
With the Alu panels being 2mm it's easier to put a blunted edge on them as per IVA requirements.
Thank's for the heads up though.
Johno