I have been remanufacturing Monark forks for my builds. Felt makes a beefier modern fork that looks similar to the Monark and they call it the Abraham Linkage fork. Problem is people can't use it on vintage builds as the newer fork uses a 1 1/8" threadless stem. Vintage bikes require a 1" threaded stem.
I am in the process of modifying these newer forks to the 1" threaded stem. It will take a bit of machining from this point and I should have the first test unit ready soon. These are going to be so cool!