We made up the cutting files on AutoCad for my spacers. I had a local machine shop CNC them for me. The set cost me $125.00 last time I had him make up a set. Maybe high price, who knows. I did this because I couldn't find them anywhere else.
The main deason I had them made was to allow me to run a dual point Mallory. Otherwise, the dist wouldn't clear the air cleaner lid.
If you want a set let me know. You can have them for cost plus shipping, which won;t be much. They're really nice looking and of aluminum, fit well with bores correctly aligned.