@Eppie Thank you for the encouragement. Building cabinets and mounting hardware would be of no issue to me. Dealing with T/S parameters, etc. in order to create something beyond amateurish - for that I lack the skills and the measuring equipment.
Hsu CCB-8s seem decent, although they are too big as on-ceilings in my situation. They could be a nice side pair, but I'm already getting SVS Ultras for that.
Will look into those wedges, though, thanks!