Welcome, Danny! It's lovely to see you join the forums!
Cirno has directed you to one of the greatest sections here on PC, and that would be the ROM Hacking section. Since you are interested in scripting and basically doing your ROM hack, you can always do that there. You can get all the help, all the tutorials, and all the tools you need. :D If you need any help, you can either ask the mods of the section, or the regulars who are willing to help you out! If you do plan to create your own hack, I wish you the best of luck! & I hope to see it in the Progressing Hacks section, where you can post your hack in Beta Mode so people can test it out and check for bugs/errors. :D
There's so much to do here...that is, if you're not ROM Hacking, you can always check out everything else that's going on @ PC. Pokemon discussions, and soooo much more! Have fun, sweetheart! See ya around, and don't hesitate to ask for any help, k!