Just pull up the cap, rotate crank manually until rotor is pointed at #1 spark plug wire, then line up TDC mark on crank to 10deg Before TDC.
Mark distributor housing and block to line up later and mark upper distributor with mark to where rotor is pointed.
don't rotate crank, until distributor is back in place.
Distributor gear and cam gear are angled, so when you pull out the distributor the rotor will turn, that is normal, and when you put it back it will turn the other way.
As long as you have the rotor lined up with the upper mark you will be fine.