Okay I have a question, and please don't take it the wrong way. Aside from your use of whatever paint is lying around as primer, I think you are doing a bang up job here.
Here is it. Since the hood and trunk are no longer recognizable as Chevy parts, how much work would have been saved if you had just spilced the roof, grill and taillights onto the Ford body and called it good? Seems you went the long way around the field instead of just crossing the grass. But I could be wrong.