Model A steering wheel lock

[Tom Gordon]

Here are the depths and spaces, pre-cut a blank to all #0 depths on your code machine to aid in seeing the impression marks:
Depths: 0=.173, 1=.286, 3=.261, 4=.248, 5=.236, 6=.223, 7=.221, 8=.198, 9=.186
Spaces: 1=.216, 2=.372, 3=.528, 4=.684
HPC Card: X45
DSD#: 334

Pete Schifferli

If you don't have to disassemble the lock, it saves the risk of what you might find out once it is in bits.
If it is working and easily impressions, that is both the easiest and best way.
if you can't do that yourself and refuse to pay someone else, then you will have to do it a riskier way.