That actually doesnt look bad, i kinda like it. Of course the body lines dont match up there,.....if they changed the doors out to the camaro doors it wouldnt look so far off because the rear of the doors more closely match the body lines than the fronts. Whichever front end you go with, you should have the doors also. As for the rear body lines, you may have to do some shaping to make it flow, but its possible.

 

I think that one could work and look pretty cool. I would say ditch the body mouldings on the door slap a ss hood on for starters or maybe a cowl hood. I think if someone actually had one infront of them to fool with the cambird could have really aggressive lines and look just plain mean.