did this yesterday,
might be worth noting that the drivers side has 2 bolts in the bottom section unlike the passenger side which only has one.
the second bolt on the bottom of the drivers side is an arse to get to and an even bigger arse to put back in.
i found in the end the best way was to put the original 2 back in but leave them slightly loose, that way you can move the handle about to get the last one in.
also when refitting, there is a long arm on each handle, you'll see it when its off, when re fitting the end of this needs to go in to a little blue holder inside the door. pre warning its not easy to see, a torch will help.
if you don't slot the bar into this hole the handle will still go on, but if you shut the door and try to open it, the handle will move like normal, but its not actually attached to the door mechanism so the door won't open.
so don't do both at the same time or you'll lock yourself out of the car, or leave the windows wound down as you can then open it with the internal handle