Obviously it is possible to make a relay system in order to increase image circle. However, it will probably be quite bulky as one might need at least 5X linear (25X planar) magnification of detail, and a mediocre resolving CCTV lens will at the final stage deliver mostly mush. If that is the desired outcome, put one any native lens on your camera and defocus it. Much easier and results will be comparable
Another point often overlooked, is what the focal length implies when you change format. From a 35mm/FX perspective, "23 mm" sound like a wide-angle lens, but that is a fallacious assumption. On the contrary, this is probably a "tele" equivalent lens on its native format and no relay system can change that behaviour.
In my experiments, I usually started with a high-definition cine lens made for 8mm format. You might also use 16 mm film cine lenses, but then the focal lengths tend to be fairly long in absolute terms and the step towards the FX format is too small as it were.
A system used for years is this based on an old Canon 6.5 mm cine lens with excellent quality for its age. The photo below depict the lens and relay system from one of the first builds (for DX). The current one is redesigned to allow use on an FX camera, in combination with a ring flash. The unit also got its by now mandatory CPU implant. Any how, this goes to show there are lots of parts involved in building even this kind of simple system. In place of the small and neat Macro-Nikkor used here, one could of course use a reversed 20-24 mm lens, but the entire rig would be much bigger and bulkier.
