Hi,
Due to not much free time these days, I only found a little about what you were asking (FAA and JAA with EFT). What I found is that once youve done your JAA, you can convert it to the FAA without much hassle at all. Again, I only did a little research on that matter, so what I would recommend you to do is to contact the EFT directly via email. They reply quickly and with the info you need and they are really helpful - you are a potential customer at the end of the day.
Hope this helps a little bit and make sure to keep us updated about your plans
Thanks