That first hunt is awesome. should hit a little late rut like last year if your lucky. Not an outfitter just like to hunt.
We have a few cabins down in Apache creek. The campground your talking about does have an rv dump station, water and electric. i think its appx 24 bucks a day.
There are a ton of elk over the whole unit. My advice is watch the weather radar and see if certain areas get more rain than other part of the unit. Then come out 3-4 days early and glass / checkout those areas a lot.
I was just down last weekend turkey hunting and saw couple hundred. From Quemado to Apache creek to reserve. Some nicer bulls starting to show good bases.
PM me if you have other questions.