We first thought of putting it into a mod for gameboy adv or game boy color.
However, both problems would be difficult for multiple reasons that include adding our own items, setting up a camp, resetting the purpose of earning badges to badge components, item fusion to create medicines, tools and food, your basic health such as energy, water, hunger and life stats; We needed a game with a scripted engine that can support this sort of thing and accept changes without a lot of trouble. So mod's were scrapped from the idea's of places to build the game in.
We then turned to RPG maker XP for a large number of reasons. We can change things easier, create game maps a lot simpler, add our own systems and so on to put the game in a position where it can be based on survival like this RP itself. There is even a POKEMON Dev. Kit build for RPG maker XP itself that includes battle system, map tiles, sprites, and the scripts to make it a 100% original pokemon game. THIS would not be a problem if I or someone can understand Ruby; All of the games operations are handled by ruby script instead of simple RPGM Events, from battles, to choosing your own pokemon, menu, setting up the inventory and all it. The most I can do is add pokemon, items and extra trainers, but that's it.
If you can find an dev. software that can let us make the sort of changes or create this sort of thing without trouble, it would be a HUGE help to us, other than that, you may need to wait until someone can understand how to change anything in it.