Peaceful Valley and Camp Dick are within 1/2 hour of RMNP and are so, so much nicer. They are above Lyons and are within a mile of one another. The Middle St. Vrain runs through them. They are much more private, waaaay less CRAZY. I can give you advice on sites that might be good for your needs. They are open much later this year than in the past (11/25) because they have been told they have to give hunters a place to camp . . . not they're going to be hunting in the campground . . . I think they are just trying to discourage dispersed camping. Checking the road conditions, weather forecast, etc. obviously a MUST!
No hookups, no dump station, vault toilets, no showers, not the best looking water that you have to PUMP at Peaceful Valley and can't hook a hose to at Camp Dick, however, if you come prepared, absolutely lovely
Malinda