VIN plate

[dean211277]

Hi,
I have my VIN number from the DVLA so now want to stamp it on some plate and welding it to my chassis.
Two questions.
1. I have use of some metal stamps at work however they are quite big they are about 10mm high letters do you think that's going to be to big? I have read there is a minimum size but not a maximum.

2. Where is best to put it so it can be seen easily? I was thinking of having two, one in the passenger compartment and one in the engine bay
Cheers Dean