does anyone have everything in one file but updated?
Most likely not. What you will need to do is look at the names of the errors (missing assets) you see when you load the character DUF file you can download in THIS thread. THEN, go here
https://f95zone.to/forums/asset-releases.95/ and search for those assets. You'll find most of the stuff you are missing you can download "for free" there, but if you really do like the asset you download you should keep in mind that someone developed it "for sale" and it would be nice if you then went and purchased it. think of the assets thread on F95 as a "try before you buy" sorta thing. Nobody would force you to buy it, but hey, if you really like it and are gonna keep using it over and over......whatever.
And yes...you are going to have to learn a LOT of things about DAZ and the DAZ Studio if you want to make decent renders. It isn't like you should expect, "Hey! Somebody give me one file that has everything in it so I don't have to learn anything new!" The first thing that will frustrate the heck outta you is, "How do I install all this stuff I downloaded?" You'll discover links to instructions for things like that as you download the assets.
I've been doing DAZ rendering for about 8 weeks now. And I STILL learn something new everyday doing it. If you really want to do it, you will have to too. But I've learned there are plenty of good people here who are willing to help. So, have at it. But you are gonna have to be willing to not depend on "one size fits all" handouts just to make your life easier for you (although there ARE numerous things like "one size fits all" pre-lighting assets, etc, that will help you learn lighting concepts, posing concepts, etc. But as you get more experienced, you'll learn how to do the nuts and bolts of that stuff yourself too...for better results a lot of times).