This would be a good question for fordbarn.com or earlyfordv8.org. You might start by searching those sites (locksmith?). I know that I have seen this type of work discussed before. The blanks are available from Bob Drake (https://www.bobdrake.com/ItemForm.aspx?Item=B-7006080) and I am sure others. Maybe with a blank a local locksmith could help. Charlie Stephens
Call or email Locksmith Leon Rowell with the numbers from your lock, he will cut you a few keys and send them to you at a reasonable price. I just had him disassemble and clean the tumblers and make 2 keys for a trunk lock cylinder of mine, he did a great job and his price with shipping both ways was good. Home 641-623-1957 Cell 641-990-9957 Email [email protected]