1970-72 Dart Chin Spoiler Questions

Ok, so word on the street is that a 67-69 Camaro chin spoiler fits on a 70-72 Dodge Dart, but has anyone actually done it? All I hear is people suggesting it. I'd really like some pictures and direction here, I know about the ones from Randy's, they look awesome, but lets face it, who has 150 bucks for a chin spoiler? Thanks in advance!
-Jacob