Crank Bros pedals with road shoes?

[CNY rider]

What's the status on using Crank Brothers pedals with road shoes these days?
The Quattro's seem to have disappeared.
The road cleat is out of stock on their website.

Why I ask: I have Candies and Eggs on several bikes of the commuter/dirt variety.
I ride with Shimano MTB shoes with the regular cleats, and everything is fine.
My other set-up has been Looks with real road shoes, and I just got some nice new road-style Diadoras which I would like to be able to use with all my bikes, shifting exclusively to Crank Bros pedals and using the road shoes on the road bikes with Candies, and the Shimano trail shoes with the others.

At this point is there any practical way to use the road shoes?