Looking sweet Carl, really coming along now. You're gunna hate me, but I would put some different rims on there AFTER you've added a kit, something black and bigger maybe. I know it means rebrushing again, and the brush you have goes to waste, but it would be sweet to see some nice race rims on it. What I would advise doing is pasting some on, skewing to fit, sorting the lighting out and reflections, THEN rebrush them to get the right look and to get them to flow smoother with the rest of the car.
Glac pointed out some very good points too, listen to what he's saying