Removing the distributor is a simple one-bolt and one-wire operation, plus disconnecting the vacuum line. If you don't turn the engine, and mark the position of the rotor as you remove it, you can simply re-insert it the way it came out with minimum changes in the timing. Everybody needs to master distributor removal and replacement- - - -it's a LOT simpler to get the points installed correctly if the dizzy is on the workbench, instead of trying to do it while leaning over a fender!
Jerry