I see absolutely no reason why it wouldn't be a great idea to pull certain components from different training methods. Matter of fact I think I've seen a number of posts here on RTF saying exactly that. When I read the original post I don't see someone who is "hodgepodgeing" or half assing or anything like that. I see a guy who is trying to put together a program using what he considers to be the best components of more than one method for himself and his dog. If a guy truly has a grasp for the reason for each step in these programs then he should be able to cover all of the needs of a successful program by combining. Dog training isn't rocket science, it isn't like there are only 3 ways to train a dog....Smartworks, Lardy, Hillman...(not picking on those just mentioning them because they are the most often mentioned on RTF in my experieince).....and to say that if there was a better way then someone would have already put it on paper is close minded. I can't fathom going through life believing the world is truly flat and there are only a select few ways to train a dog.
Obviously I don't know if the op has any idea what he's getting in to but to simply assume he's messing up by developing his own system isn't fair to the op if ya ask me.