That's really creative! But although I know that you can't make the wheelarch smaller, I don't like that part by myself. But that's not your fault it's TLG's fault because they need to solve those things. But you'll get a very nice 5/5 from me, I do like it. :-)
Neat mod, I like that it doesn't detract from the looks. I'd like to see you make some alternate models from these sets. Also, are you going to modify the official alternate models of 5767? It would be neat to see something a bit different.