Hey those specific lines you mentioned in that second block are the next ones I wanted to mess around with.
Here's what I do know about DLC.
They have only released weapons, armor, quests and some character edit stuff. When you get DLC armor and weapons it just adds it to your storage box which can be found at an inn, DLC quests are available in the the notice board downstairs at the Pawn Guild (be aware though some DLC quests don't show up until you pass certain quests in the main storyline), character edit stuff is obviously found in the character edit screen.
So I'm thinking the move is to edit all those "0"'s to "1"'s, fire up the game, check the associated DLC areas (storage box, Pawn Guild notice board and character edit menu) and report back what we found.
Here's the part that makes me nervous.
The u32 is the datatype. After checking out some other u32 variables in that same savefile they can be up to 9 digits long which means it can accept a number into the millions. Maybe the DLC gets unlocked with sequential numbers (i.e 1, 2, 3 etc.), maybe its the date of the DLC (i.e 201207091, 201207092 etc.), maybe its a randomly generated number or maybe its not even a number...
This is something we are just going to have to experiment with.
After inserting Rivik's DLC values into my own savefile it unlocked nothing. At first I tried each of the values Rivik's file had all by itself and it unlocked nothing. Then finally I entered them all, still nothing. Then I tried changing the values a little and still nothing.
I'm thinking because the values go into the billions there is a specific number for each DLC that's associated with your profile stored on a server somewhere so everyone is going to have a different value.
If I'm wrong I don't what else it could be cause I'm out of ideas.