[Karl]

I think those figures are fine.

For the dizzy remove the generator/Fan and the fan belt
Place a piece of cardboard against the radiator (To Protect your knuckles )
Remove the dizzy/Coil assembly from the top (3 * 1/2 inch bolts ).

When you put the new one in use a couple of carburretor studs loosely screwed into 2 of the 3 the bolt holes . Use grease only on the gasket . Use the carb studs to align the dizzy body then gently turn the rotor until the tang drops into place and the dizzy body snugs up right against the front of the motor . If it doesn't snug up tight the tang may well be 180 degrees out and bolting it up then will crack the body (many of us have the T-Shirt ) If every thing is snug put one bolt in and then remove the carb studs and replace with the bolt one at a time-If Michael rebuilt it it will be great -Karl