Thanks Dugite,
I have some pictures of one. I did think about fabing this up too.
Unless there is an RFSV being wrecked, I doubt I will be able to get a hold of one second hand.
You reckon you could measure the thickness, length and width of it.
I might give it a go this weekend with some scrap metal. It can always be "refined" to fit :-)
Cheers,