My question is which size of NMC's pack should I get?? The reason I am asking is because I want to know if the large or medium will affetc my performance alot. Also I wanna run NMC with Ojo Bueno because I am currently using OJO bueno HQ textures, but it doesn't add as much as NMC's does so I want to have both textures... if that is possible? If it is how would i do this?

So far I have a fair bit of mods but I manage to get a steady 60 FPS with fraps with the current mods:
Mod List:
Project Nevada
Electro City
A world of pain with patches for performance
Nskies URWL
iHud
MCM
CASM
New vegas bounties I and II
EVE
Mission Mojave patches
High Roller Suite
Dynavision
populate casinos
Ojo Bueno HQ with some UHQ textures
Stutter remover

Specs:
i5 2500k
Radeon 7870
4GB 1600mhz G.Skill ripjaws ram
7200rpm HDD (I want loading screens to be quick) (cant afford SSD )
and im not sure if this affects performance but : Z77 pro 3 motherboard asrock (im new to computers...)

So would my computer take a big hit in FPS if I used the large one+ Ojo Bueno? What about medium and small? I want a steady 60fps and will not settle for anything less... (I am obsessed with getting at least 60+fps...)