Okay here's my idea. The civic in the third to last pic you posted is really well done. So you should:
a) lower the car- i know you said you don't want to, so just get smaller rims and lower profile tires and that should to the trick just fine.
b) See if you can find a body kit like that (at least the front bumper) you can stick with extensions on the rear.
c) Front grill.
d) You've got the lights going on already so that works out well.
I think that would cover it. I guess you can get your hood painted like the one in the picture, but your car is already pretty dark so it wouldn't really matter very much...
I think khurrum bhai could probably assist you with the bumper designs- he has one for a frickin' EVO for god's sake! I'm pretty sure he'll have something of that sort.