In the future I want to buy flared wheel arches for the three door FiST I wish to get my hands on. The trouble I've found is finding a set that I actually like the look of. There is one SET that I really like the look of, but the manufacturer says they'll never make a version for the three door 'cause the five door didn't sell well. So then, I thought maybe I could adapt it for the three door. Would it be possible with minimal effort, or would it take a total redesign? My guess is that the front arches are the same design and size? If so, that would just leave the rear arches, which are a bit more tricky. I've seen other owners adapting five door arch kits from other makers and all they did was fill in the gaps for the rear doors with body filler, but they were more basic bolt-on designs, whilst this is blended more into the bodywork design. Is there much if any difference in rear bodywork design between the three door and five door FiST?