Yeah what a shame theirs not a marshy skyrim mod which turns the carriages into silt striders an a option to watch rather then get a loading screen I feel like playing Morrowind now

Most of?

The DLC are tiny, I just installed all of them in one go off the 2nd disk. The largest was around 790(?)MB, much smaller then I was expecting a DLC that big to be.

With Dawnguard and Dragonborn installed, there can be instances of radiant quests, and in particular one very important NPC who is required to continue the Dawnguard faction quest-line, where you have no directions, and so need a map marker, but one doesn't show up. Don't worry, the quest isn't glitched, Radiant Story has placed the NPC somewhere on Solstheim, and the necessary map marker will show when you get to the island.

Hey guys mind me asking in what order should i get the dlc's for role-play purposes? HF/DG/DB?

I'm planning on finishing the main quest before buying any of the DLC"s so that i won't get bored fast.

Yes. Here is more http://www.gamesas.com/topic/1462092-faqs-for-skyrims-legendary-edition/ about installing Skyrim LE (retail).