This is very cool, I recommend the Medium option as that is what worked the best for me by far. The large option made Ebon Hawk load times take 2-3 minutes for me, going down to medium the load time dropped to 5 seconds. All options are a major improvement to the vanilla. The larger files do look noticeably better, so if your computer loads it fine then go for it.
This mod is very cool and works great! HOWEVER, if you like a quiet, peaceful Dantooine, particularly in the area around the Ebon Hawk, then avoid the optional added Jedi on Dantooine. I installed this following the Snigaroo build and kinda wish I hadn't included the optional install because of the constant light saber noise in the area. I don't think I can undo the optional installation without having to redo the whole build. I'm nitpicking though, the optional mod is cool, just noisy in the area outside the Ebon Hawk.