Suggestions for valve cover gasket (318) rubber / silicone ?

I was looking for something a little more substantial than a cork gasket, but that's all I see on rock auto. About the only thing I see anywhere is the Assault Racing rubber gasket with steel shim core. Don't know if that's actually made by them or someone else, but $22 price is right. Any comments about that one, or is there a better one at the same price point? I think there's a Moroso one but 3 times the price?