I am having a hard time seeing the close ups but lemme give it a shot.

The coils on that motor appear to be what the 22 cu. in. 18/20/25 HP OMC used from 1972 through 77 or 8. It's a good igintion, you should get hot fire that will jump a good 3/8". As long as you run the correct mag plate, with all the goodies that match those coils, you should have no trouble. Points will work just about as well if you use the factory ignition fixtures to time them until you hit 6500 or so. so, how tight are you going to be winding that bad boy up?