To my knowledge, DMCH will not only sell the blank, but have them cut
for you if you request it.
My two cents worth on the key issue. I called Warren at DMCH and gave
him my key code. He trotted out to the warehouse, looked in the bin
for my code, grabbed me a factory fresh set of early ignition keys with
the metal key code tag still attached, dropped them in an envelope with
a molded head door key blank and I had them two days later at a cost of
about $35. The ignition keys are missing the back part with the the
button for the light but work like a dream.