That's what I'm thinking too. If enough resources would have been out into it, I'm certain the Tf30 could have been copied by now, but airforce resources were always limited. So either the airforce budget would have to grow substantially to indigenize the flankers or grow substantially to finally make the effort of a domestic engine and aircraft come to fruition. Either way, airforce would need vast resources which in turn would make domestic production more feasible (with proper discipline and management of course).
Another point is that enough aircraft would need to be purchased to make the effort worthwhile, so maybe 80 to 160 minimum rather than 24-60...