It sounds great, but I've always found the DC/OS marketplace not really flexible enough. I've looked at many services, but in most cases the requirements for running a service from the marketplace were for extremely high throughput situations. I wanted to experiment with arrongoDB but it required a total of 16GB memory (IIRC).

Practically, I think kubernetes with helm charts gets will get you at least 90% of what DC/OS offers.

Also, running Kubernetes itself is complicated enough, running it on a different scheduler will just expose you to the pains of both schedulers.