@Jo the first thought that springs to mind is finding a lapdesk you like the look of and adding one of the more entry-level logitech wireless keyboard/mouse combos like the MK270, 360, or 470, basic but passable
Is there any sort of lower limit for configuration you're looking for though?
@elfi Just that it works and it comfortable to use for basically pointery, clickery and typing where needed.
I'm not looking to play Quake with it any time soon, but maybe SCUMMVM.