Cometic can make custom gaskets, they need the inner and outer bore diameter, and bore spacing..
If they have something similar, they can make MLS gaskets for $100-200 a side. If not they need a sample, they said they can work with an autocad file or cylinder head/ block (dont know why theyd need that). A totally custom gasket is kind of expensive. They do have gaskets other mercedes engines with a 90mm bore so we may be in business.