I assume you know where the rotor was when you took the dist out..
so, if the dist drops right in when you have the rotor where it was , it is correct. if it does not and the rotor has to be turned 180 degrees from where it was , the drive is 180 out . so, remove pin and turn it..[ the drive will not go in freely if it is not correct on the shaft, as the offset wont match with the drive dogs]
There is no need to turn engine to TDC to get it back in..
just be sure you did not turn engine after removal of dist...

or.. as DD says , try it .. if its out 180, it won't start ,,you gotta 50/50 chance..