I'd say generally do placement like a standard build.
MB in the top left, ODD in the top right either facing toward to
or side, HDD/SSD below the ODD.
PSU would probably have to go below the HDD/SSD, doubt there would be room below the MB.
Obviously not to scale, but my ghetto MS Paint concept:
If everything is laying flat it should fit in, and since nothing would be attached to the other side you could open/close without issue.
*Edit - Looking at dimensions of parts the ODD would probably have to face the side and the HDD/SSD would probably have to be placed on it's side instead of laying flat
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