well i can just recreate the world i just need help with the hours (like 48) that it will take me to build cities (and then copy and paste them) as well as the ship (it will be easiest). i am not worried about the mine shafts. it is the fact that everything is super flat and i have to do everything from mounds of dust, to cities (i would like rivers and oceans but dont know how to spawn and i don't want to make them).
The mineshafts can be disabled in the enviromine configs, if I remember correctly.
If you want rivers/oceans, try doing as Iskandar suggested--using some mods to take control of world generation. I don't really know how they work, but you could likely use them to change which blocks generate in specific biomes--Change everything other than rivers/oceans to generate as a wasteland-y version of themselves.
Also, in terms of cities and such, is your pack supposed to be (essentially) a CL-esqe pack, or (as you mentioned a pages ago) a post-nuclear war survival pack? If it is nuclear war, I don't think that dust or cities would really fit the pack. In a nuclear apocalypse, I'd recommend: Sand->glass; dirt -> cracked dirt (the stuff in Regrowth) or gravel. Likewise, trees could be replaced with 1 charcoal block. Maybe occasional nuclear bunkers as dungeons, and maybe very-broken down cities (nothing above 1-2 stories tall, lots of cement-y blocks) as rare generated structures.
If you want it to be a Crash Landing with water, I'd ask Iskandar if he cares how similar your pack is to the original. (In the case you want CL-style cities, and Iskandar's ok with that, you could try porting the 1.6 Ruins structure files to 1.7, then use something like Recurrent Complex for generating cities).
Actually, if your use of the CL1-6-4 cities is OK'd, I can give you some reasonably-well ported structure files (the main structures would be fairly accurate, but anything inside (reactor parts, tinkers' smeltery/high oven bits, pneumaticcraft things) would still probably be glitched) of most of the buildings.
Also, a totally off-topic question, but Iskandar--How do you pronounce your username? (Which syllable is accented?)