Rock River Arms is a 2 man shop. Their attention to detail is much better than an semi custom/production shop would be. The end result is a gun that has better fit and finish, and in my opinion, better parts. In addition, since they are a custom shop you can order the gun your way. Your not tied to a "take these options whether you like it or not" scenario.
Their Elite Commando is a commander sized gun, only with a 4" bbl, like the Pro CDP. It is all steel, however. The cost is $ 1200.00. A little more than a CDP, but a little less than Baer/Wilson. When I ordered mine (early June)I was given a 5-6 month wait, but was recently told it "should" be ready at the end of Jan. They are quoting a 7-8 month turn around time now. It should be well worth the wait.
The problem here is, you have lots of people with different opinions. What might be attactive to one is not to another. You may be perfectly happy with a Kimber CDP, or you might kick yourself in the butt for not getting a custom shop gun. Only you know for sure what will make you happy.
Take everyone's info and sort it out to pick a gun that will suit you.
Good luck!!!