Yes to all of them!
Space Mountain - you go as far as the loading point, then go up the stairs to the left which brings you out at the exit.
RnRC - go to the loading point, then go through the corridor directly in front of you marked ' for non-riders' - you come out where they get off.
IJ - again right to the loading point but carry on walking - there is a little bridge that goes over the ride. At the bottom don't exit, but turn back on yourself and there is a bench for non-riders where the guests get off.
TOT - you can go as far as the lift itself - you only exit as guests get on the lift, so you see the library scene and boiler room (listen for the spooky voice calling "I'm scared. Where are you?"). The CM shows you out of a door next to the lift and you wait in the corridor with the eerie music. Probably my favourite one, as all is quiet for a couple of minutes then a door opens and a lift load of people come past - always chattering loudly, most laughing but always at least one child being comforted! All goes quiet again - then another lift comes out.
How sad am I? I actually have a favourite chicken exit.