You shouldn't have to remove the door; in fact, I would recommend not doing so.
You're also going to need to remove the well liner, but that comes out pretty easily. If I recall, there's 3 plastic nuts and then 5 of those push-pin things (stick a screwdriver under the top cap to pull the plug out, that will release the other part of the pin).
There's a quick video on youtube detailing bolt positions.
https://www.youtube.com/watch?v=cEJa6dQYJzM
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