Your guys's opinion on do this repair myself or take it in?

I WOULD do it. I already did all of that stuff on my project. BUT I am not afraid of working on things, and have done it on a couple of my cars and trucks in the past. If You have some place to work on it, then take pictures as you take things apart. Be very careful when getting parts, as even the best parts guys sometimes are not familiar with you application. Also the computer is usually wrong when it comes to motor homes. Always take the old part and match it up with the part you are buying.