Originally Posted by
sbslider
..Based on these and the advice from FB I think I am looking for a chain ring as he posted with tabs with machined circle.
..
If you cannot find the right rings at a reasonable price, you can buy standard ones and file enough off the tabs to clear the shoulders. You'll lose the benefits of the shoulders, which help keep rings concentric and prevent the bolts from working loose, but many cranks these days don't have the shoulders and they work reasonably OK.