Thank you, Rondidon! Last update on this topic: (Almost) finished this rendering setup, now with bloom. I think the subtle shadows/ fake AO add nicely to the depth perception:
(lower screenshot taken without fake motion blur, without fake AO and without bloom)
May not look as nice as other solutions and I've got a fast pc, but runs at 390+fps on 1280x720 screen resolution.
"Falls das Resultat nicht einfach nur dermassen gut aussieht, sollten Sie nochmal von vorn anfangen..." - Manual