Sorry, but using "fire control parts" in relation to a revolver makes me cringe. A no dash still had everything fitted/stoned to make it work.
@revchuck38 is spot on about the recall and where to start with your revolver. A new mainspring and strain screw should cure your light strike problem, but the DA trigger is going to be stiff. The strain screw was (maybe still is) a fitted part. Stone it carefully and you lighten the trigger pull. Stone it too much and you're back to where you started.
Sending it to Cylinder and Slide would be another option.