Guys, if you want a mod made to your specifications...? Learn how to mod, and make it. It's not callous, it's just reality. The people who have developed the skills are already working on their own mods. If it's just a small gameplay tweak you might get someone to do it or at least tell you how, but if it's a major change your best bet is to learn the ropes, then do it up just as you'd like.
I've done that with my mods for other games. They were time-consuming, so I asked questions, and stumbled forward. Finished, posted, and use them.
Alternatively, wait around until Brad's team develops the modding tools so you can avoid XML. Shouldn't be more than a few months. On the other hand, learning how XML is used in FE is probably a good idea, in any case.