and if you want carpet its more... and then if you want them to drill holes threw the wood for the wires to run threw so they dont go out the port that cost a extra 500$ ;) lol j\p but ya shipping will suck, your going to have to up your budget to about 150$ or so..... or try to talk to logan, i know he ussualy does some pretty cheap and has some kind of deal with the shipping company or somthing
i dont think you can even get a prefab for that much prefab's are normally around 150 for a 1/2 way decent prefab lol(by halfway decent i mean for a prefab versus other prefab not as in against normal boxes just want to clear that up lol)