I would like to run a game set in a fantasy setting that has a post-industrial level of development. Basically D&D with guns, cars, ect. I want to modify the PFRPG system because I am not pleased with d20 Modern for a variety of reasons, though I am thinking of using some elements from it.
So we need rules for firearms, probably a modified wealth system of some kind (d20 Modern's system should work well, though I'll have to figure out how finding ancient treasures will work with it, obviously you can't just bring old gold coins into a shop and buy something, but you should be able to exchange it for something you can use), new/modified skills, ect.
Anybody have any suggestions/ideas?