The easiest way to get an exact measured lift in sag is option A. With the other two options, you won't really know exactly where things will settle due to the amount of variables. If the only thing you are unhappy about is the decrease in rear height, I would go with coil spacers. Measure the exact loss in height and figure out what you would need in order to be level. Keep in mind if you are a dual top, the hard top when on will weigh more towards the rear while putting a soft top on will weight less. Base your spacer size on the top you will be running most of the time. BTW, welcome!