u need to take a base, build-your-own-rom (available in the forum), open the zip, and drag & drop the apps into the appropriate folders of the rom to make your changes. people should then be able to flash the rom thru CWM recovery, if u have done it correctly. u cant really take the rom u r using, and easily make a zip for people to flash. to change things like default wallpaper and system colors, u have to decompile the framework. to change the boot splash, u have to decompile the boot.img. all of these things have to be done manually to the zip file to make changes to the rom. if u just wanna change around the apps that flash with the stock rom tho, u can just delete any apps u wanna remove, and drag & drop the new apps in their places. good luck buddy! if u need help, im here!