Bummer! Tread for the AML's are too modern.
Of the pics I took, of AML's I transported in 1977, 1978, and 1979, sported the same tread pattern to the D.E.F release. Shaving/sanding them down a bit to give them a worn look might be key. While D.E.F.'s release might replicate the AML's most popular tire mount to/on the vehicle, there are certainly other tire manufacturer/tread patterns that can be more than substituted to the model. Photos abound of AML's show that there are other type tires used on the AML, and not D.E.F.'s pattern exclusively. Hope this helps!!