Maybe someone has passed SVA and no longer needs the chassis punches ?
Minimum 4mm height of course.

Also will need axle weight gauge

For axle weights I just put what was recommended by the manufacturer which was 450kg per axle.

Put something around that and you will be fine. They weight the car at SVA to make sure it doesnt exceed the axle weights you have given. If you accurately measure it they weight it heavier. Give your self a big margin.

I thought they had to be > 5mm.
I got some from Screwfix but IIRc they're 4mm.

from the mouth of the horse, section 22.

2. check the plate
* is of durable material
* details are of an indelibe marking
*VIN charaters are not less than 4 mm in height

NOTE: in the case of a vehicle that is fitted with a plate produced by the manufacturer of the vehicle that otherwise complies with the requirements in this section, the VIN characters may be less than 4 mm in height.

aklsdkf 4rto voewwe4;km f sg llwr fewlkwleticd .ed.

Jolly good! Thought I was breaking the law there for a bit

Ty guys.

Chris, I meant I would like to buy the proper guage to set up my suspension - without going the 8 x Argos weighing machine route

Buty I note good advice re overstating weight for SVA