Unfortunately, the odds of you seeing all of those characters in one day (even without a resort break) isn't very good. Darth Vader and Chewbacca alone will have waits of 60-90 minutes each. For the past 2 years C3-P0, R2-D2, Luke and Leia were all in the same rotating character line and do not meet together (except the rare time when they are rotating out). To see all 4 you will probably be that line 3 hours+
As for the parade, it is a very short route, therefore not enough room for everyone who wants to see it to do so. People will literally sit down for a curbside spot when the park opens. If you want to see it, you will need to reserve about 90 minutes to see it from the third or fourth row of folks on the curb (1 hour before and then the 20 minutes or so it takes to watch it).
Then there's the Hoopla. To view on stage, the front row spots will go about 2 hours before it begins. Even if you are 10-15 feet back, the amount of people who will plop kids up on their shoulders, thus blocking any view you might have, is insane.
Luckily, the past 2 years they have also been broadcasting it on the AI screen, just to the left of the stage. It is much more "civilized" over there

No standing, no kids on shoulders. Walk on over and claim a seat on the ground about 20-30 minutes before it starts.
I know, it is isn't very encouraging. Truly, it is a fun event but if you want to do that much you are going to need to dedicate at least 2 days to do it.
HTH!