So over the time, I have created some terrible pronunciation habits, that I am currently trying to correct. Specially my "ら's" and I am really disappointed in much of a foreigner I sound like. It's probably the worst thing ever, learning a language in all the wrong ways. Thus, I am looking for the best method of studying pronunciation, vocabulary, and grammar. I believe this would lie within SPS decks, specially Anki or something similar?
Anywho, I am steady finishing up my RTK1 and should be ready to start everything really soon. But how? I feel the best next step would be studying pronunciation, vocabulary, and sentence structure all in one by means of lots and lots of native sentences with spoken audio within a SPS deck. Is there any good decks like this or recommendations that can lend me into the correct path?
If not, how does everyone else goes about studying sentence structure, voca, and pronunciation sounding like a native speaker?
Anywho, I am steady finishing up my RTK1 and should be ready to start everything really soon. But how? I feel the best next step would be studying pronunciation, vocabulary, and sentence structure all in one by means of lots and lots of native sentences with spoken audio within a SPS deck. Is there any good decks like this or recommendations that can lend me into the correct path?
If not, how does everyone else goes about studying sentence structure, voca, and pronunciation sounding like a native speaker?

I would say any media will do as far as shadowing goes. You don't need a special deck to do it. I can't even recommend you any decks, since i work with textbooks, my own decks, as well as online resources. And i just speak, or sing along, whenever i feel like doing it. Most often i do it during my learning session, though. I'm sure that someone else will recommend you such material, if you really find you need it, but this can wait as well.