I have an R1 5VY sump plate in billet Aluminium.
It is about 1cm deep.
So I guess can only be used in conjunction with a dry sump system.
No good to me any more as the oil pump packed in and cannot be replaced.
Not sure it is any good to anyone actually!
But, if anyone has a use for it PM me.
I hope it is of some use, but I'll be surprised!