Funnily enough I've got one of cannondale's ridiculous proprietary suspension forks on another bike...
But then I've got round that by never servicing it.
Then you sir...are missing out.
Anyway: buy Athena 11, remove chainrings, find NOS / used Athena UT crank, install 11 speed chainrings, install crank. Job done?
Then you sir...are missing out.
Anyway: buy Athena 11, remove chainrings, find NOS / used Athena UT crank, install 11 speed chainrings, install crank. Job done?