Good fight of hypejobs, somehow I think Makhmudov would have won, Price seemed too soft in some fights...
I thought of Makhmudov as a Russian Price but not as vulnerable and that's still my opinion, though not held as strongly given how quickly he folded to Kabayel. I don't know if Price would have got past early 40's versions of Takam and Wach, he failed spectacularly with early 40's Thompson. I imagine that Makhmudov's strength, aggression and power would make quick work of Price if he didn't land a bomb.
Shot delivery and skills to Price. Power is near equal. Id say Kabayel would of beat Hammer, Chisora, Teper and the Thompson of the Price Fights. Makhmudov should have better stamina and chin, and aggression.