Firstly not quite sure about what you mean by a hipper actor LOL
secondly not sure I agree with this JW said a few times he was gald he turned down the role cos he did not like the violence and language that had crept into films by then.
just my thoughts on the subject
Notice that I put "hipper" in quotes...hipper-- meaning a trendy, flavor-of-the-month actor circa 1974.
And if Duke didn't agree initially with the DH content, he didn't waste any time starring in a knock-off of same. I'm still glad that he did, though, as McQ is a favorite Duke film of mine.