Here are some more photos....
the first is with both the fan box and the hot air box. They do both come out fairly easily, the fan box just pushes into the back of the drum, but remember to retrieve the rubber, slightly square seal, and reseat properly.
In terms of access, if you tilt the machine then the drum moves giving you access to various bolts etc without having to take too much apart.
Lastly, I use little pictures and cardboard and push the screws through as I remove them so I know where they go back and in what order. Here are all the screws you need to remove to get to