I bought Fallout: New Vegas at the recent steam summer sale without the DLC's since I was still contemplating if I'd like the game or not even though I bought Fallout 3 GOTY Edition since "Game Of The Year" sounded legit. Man, I was wrong. Fallout: NV is leaps and bounds better, in my opinion. So, back to the question. I'm planning on buying NV Ultimate Edition in steam but I'm not sure what will happen.

Will Fallout: New Vegas Ultimate Edition be considered as another different game in my steam games list?

Will my saves in Fallout: NV be ported to the Ultimate Edition?

I was planning on just buying the DLC's itself but it costs a lot more to buy the DLC's (Approximately 663.80 PHP or 14.201 USD) than buying the Full expansion pack(499.95 PHP or 10.707 USD) of the game. I've already bought Gun Runner's Arsenal DLC a month ago since I still had some steam cash through selling cards and I don't really feel like buying Courier's Stash since I feel like it'll make the game easier. It's currently trimester break for us so I'm working part-time and am bored at nights so I need Fallout: NV there for me. And I stop enjoying the game once I hit level 30, so I thought I should get the DLC's so that I can get the level 50 cap. I mean, how can you enjoy the finishing the missions when you don't get any XP reward anymore?